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Council Regulation (EU) 2015/1861 of 18 October 2015 amending Regulation (EU) No 267/2012 concerning restrictive measures against Iran
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This Annex comprises the following items listed in the Nuclear Suppliers Group list, as defined therein:
The transfer of “technology” directly associated with any item in the List will be subject to as great a degree of scrutiny and control as will the item itself, to the extent permitted by national legislation.
Controls on “technology” transfer do not apply to information “in the public domain” or to “basic scientific research”.
In addition to controls on “technology” transfer for nuclear non-proliferation reasons, suppliers should promote protection of this technology for the design, construction, and operation of trigger list facilities in consideration of the risk of terrorist attacks, and should stress to recipients the necessity of doing so.
The transfer of “software” directly associated with any item in the List will be subject to as great a degree of scrutiny and controls as will the item itself, to the extent permitted by national legislation.
Controls on “software” transfer do not apply to information in “the public domain” or to “basic scientific research”.
“basic scientific research” — Experimental or theoretical work undertaken principally to acquire new knowledge of the fundamental principles of phenomena and observable facts, not primarily directed towards a specific practical aim or objective.
“development” is related to all phases before “production” such as:
design
design research
design analysis
design concepts
assembly and testing of prototypes
pilot production schemes
design data
process of transforming design data into a product
configuration design
integration design
layouts
“in the public domain” as it applies herein, means “technology” or “software” that has been made available without restrictions upon its further dissemination. (Copyright restrictions do not remove “technology” or “software” from being in the public domain.)
“microprograms” — A sequence of elementary instructions, maintained in a special storage, the execution of which is initiated by the introduction of its reference instruction into an instruction register.
“other elements” — All elements other than hydrogen, uranium and plutonium.
“production” means all production phases such as:
construction
production engineering
manufacture
integration
assembly (mounting)
inspection
testing
quality assurance
“program” — A sequence of instructions to carry out a process in, or convertible into, a form executable by an electronic computer.
“software” means a collection of one or more “programs” or “microprograms” fixed in any tangible medium of expression.
“technical assistance” may take forms such as: instruction, skills, training, working knowledge, consulting services.
“technical data” may take forms such as blueprints, plans, diagrams, models, formulae, engineering designs and specifications, manuals and instructions written or recorded on other media or devices such as disk, tape, read-only memories.
“technology” means specific information required for the “development”, “production”, or “use” of any item contained in the List. This information may take the form of “technical data”, or “technical assistance”.
“use” — Operation, installation (including on-site installation), maintenance (checking), repair, overhaul or refurbishing.
As defined in Article XX of the Statute of the International Atomic Energy Agency:
“Source material”
The term “source material” means uranium containing the mixture of isotopes occurring in nature; uranium depleted in the isotope 235; thorium; any of the foregoing in the form of metal, alloy, chemical compound, or concentrate; any other material containing one or more of the foregoing in such concentration as the Board of Governors shall from time to time determine; and such other material as the Board of Governors shall from time to time determine.
“Special fissionable material”
The term “special fissionable material” means plutonium-239; uranium-233; “uranium enriched in the isotopes 235 or 233”; any material containing one or more of the foregoing; and such other fissionable material as the Board of Governors shall from time to time determine; but the term “special fissionable material” does not include source material.
The term “uranium enriched in the isotopes 235 or 233” means uranium containing the isotopes 235 or 233 or both in an amount such that the abundance ratio of the sum of these isotopes to the isotope 238 is greater than the ratio of the isotope 235 to the isotope 238 occurring in nature.
However, for the purposes of the Guidelines, items specified in subparagraph (a) below, and exports of source or special fissionable material to a given recipient country, within a period of 12 months, below the limits specified in subparagraph (b) below, shall not be included:
Plutonium with an isotopic concentration of plutonium-238 exceeding 80 %.
Special fissionable material when used in gram quantities or less as a sensing component in instruments; and
Source material which the Government is satisfied is to be used only in non- nuclear activities, such as the production of alloys or ceramics;
Special fissionable material | 50 effective grams; |
Natural uranium | 500 kilograms; |
Depleted uranium | 1 000 kilograms; and |
Thorium | 1 000 kilograms. |
The designation of items of equipment and non-nuclear materials adopted by the Government is as follows (quantities below the levels indicated in the Annex B being regarded as insignificant for practical purposes):
Nuclear reactors and especially designed or prepared equipment and components therefor (see Annex B, section 1.);
Non-nuclear materials for reactors (see Annex B, section 2.);
Plants for the reprocessing of irradiated fuel elements, and equipment especially designed or prepared therefor (see Annex B, section 3.);
Plants for the fabrication of nuclear reactor fuel elements, and equipment especially designed or prepared therefor (see Annex B, section 4.);
Plants for the separation of isotopes of natural uranium, depleted uranium or special fissionable material and equipment, other than analytical instruments, especially designed or prepared therefor (see Annex B, section 5.);
Plants for the production or concentration of heavy water, deuterium and deuterium compounds and equipment especially designed or prepared therefor (see Annex B, section 6.);
Plants for the conversion of uranium and plutonium for use in the fabrication of fuel elements and the separation of uranium isotopes as defined in sections 4 and 5 respectively, and equipment especially designed or prepared therefor (See Annex B, section 7.).
Various types of nuclear reactors may be characterized by the moderator used (e.g., graphite, heavy water, light water, none), the spectrum of neutrons therein (e.g., thermal, fast), the type of coolant used (e.g., water, liquid metal, molten salt, gas), or by their function or type (e.g., power reactors, research reactors, test reactors). It is intended that all of these types of nuclear reactors are within scope of this entry and all of its sub-entries where applicable. This entry does not control fusion reactors.
Nuclear reactors capable of operation so as to maintain a controlled self-sustaining fission chain reaction.
A “nuclear reactor” basically includes the items within or attached directly to the reactor vessel, the equipment which controls the level of power in the core, and the components which normally contain or come in direct contact with or control the primary coolant of the reactor core.
The export of the whole set of major items within this boundary will take place only in accordance with the procedures of the Guidelines. Those individual items within this functionally defined boundary which will be exported only in accordance with the procedures of the Guidelines are listed in paragraphs 1.2. to 1.11. The Government reserves to itself the right to apply the procedures of the Guidelines to other items within the functionally defined boundary.
Metal vessels, or major shop-fabricated parts therefor, especially designed or prepared to contain the core of a nuclear reactor as defined in paragraph 1.1. above, as well as relevant reactor internals as defined in paragraph 1.8. below.
Item 1.2 covers nuclear reactor vessels regardless of pressure rating and includes reactor pressure vessels and calandrias. The reactor vessel head is covered by item 1.2. as a major shop-fabricated part of a reactor vessel.
Manipulative equipment especially designed or prepared for inserting or removing fuel in a nuclear reactor as defined in paragraph 1.1. above.
The items noted above are capable of on-load operation or at employing technically sophisticated positioning or alignment features to allow complex off-load fueling operations such as those in which direct viewing of or access to the fuel is not normally available.
Especially designed or prepared rods, support or suspension structures therefor, rod drive mechanisms or rod guide tubes to control the fission process in a nuclear reactor as defined in paragraph 1.1. above.
Tubes which are especially designed or prepared to contain both fuel elements and the primary coolant in a reactor as defined in paragraph 1.1. above.
Pressure tubes are parts of fuel channels designed to operate at elevated pressure, sometimes in excess of 5 MPa.
Zirconium metal tubes or zirconium alloy tubes (or assemblies of tubes) especially designed or prepared for use as fuel cladding in a reactor as defined in paragraph 1.1. above, and in quantities exceeding 10 kg.
Zirconium metal tubes or zirconium alloy tubes for use in a nuclear reactor consist of zirconium in which the relation of hafnium to zirconium is typically less than 1:500 parts by weight.
Pumps or circulators especially designed or prepared for circulating the primary coolant for nuclear reactors as defined in paragraph 1.1. above.
Especially designed or prepared pumps or circulators include pumps for water-cooled reactors, circulators for gas-cooled reactors, and electromagnetic and mechanical pumps for liquid-metal-cooled reactors. This equipment may include pumps with elaborate sealed or multi-sealed systems to prevent leakage of primary coolant, canned-driven pumps, and pumps with inertial mass systems. This definition encompasses pumps certified to Section III, Division I, Subsection NB (Class 1 components) of the American Society of Mechanical Engineers (ASME) Code, or equivalent standards.
“Nuclear reactor internals” especially designed or prepared for use in a nuclear reactor as defined in paragraph 1.1 above. This includes, for example, support columns for the core, fuel channels, calandria tubes, thermal shields, baffles, core grid plates, and diffuser plates.
“Nuclear reactor internals” are major structures within a reactor vessel which have one or more functions such as supporting the core, maintaining fuel alignment, directing primary coolant flow, providing radiation shields for the reactor vessel, and guiding in-core instrumentation.
Steam generators especially designed or prepared for the primary, or intermediate, coolant circuit of a nuclear reactor as defined in paragraph 1.1 above.
Other heat exchangers especially designed or prepared for use in the primary coolant circuit of a nuclear reactor as defined in paragraph 1.1 above.
Steam generators are especially designed or prepared to transfer the heat generated in the reactor to the feed water for steam generation. In the case of a fast reactor for which an intermediate coolant loop is also present, the steam generator is in the intermediate circuit.
In a gas-cooled reactor, a heat exchanger may be utilized to transfer heat to a secondary gas loop that drives a gas turbine.
The scope of control for this entry does not include heat exchangers for the supporting systems of the reactor, e.g., the emergency cooling system or the decay heat cooling system.
Especially designed or prepared neutron detectors for determining neutron flux levels within the core of a reactor as defined in paragraph 1.1. above.
The scope of this entry encompasses in-core and ex-core detectors which measure flux levels in a large range, typically from 104 neutrons per cm2 per second to 1010 neutrons per cm2 per second or more. Ex-core refers to those instruments outside the core of a reactor as defined in paragraph 1.1. above, but located within the biological shielding.
“External thermal shields” especially designed or prepared for use in a nuclear reactor as defined in paragraph 1.1 for reduction of heat loss and also for containment vessel protection.
“External thermal shields” are major structures placed over the reactor vessel which reduce heat loss from the reactor and reduce temperature within the containment vessel.
Deuterium, heavy water (deuterium oxide) and any other deuterium compound in which the ratio of deuterium to hydrogen atoms exceeds 1:5 000 for use in a nuclear reactor as defined in paragraph 1.1. above in quantities exceeding 200 kg of deuterium atoms for any one recipient country in any period of 12 months.
Graphite having a purity level better than 5 parts per million boron equivalent and with a density greater than 1.50 g/cm for use in a nuclear reactor as defined in paragraph 1.1 above, in quantities exceeding 1 kilogram.
For the purpose of export control, the Government will determine whether or not the exports of graphite meeting the above specifications are for nuclear reactor use.
Boron equivalent (BE) may be determined experimentally or is calculated as the sum of BEz for impurities (excluding BEcarbon since carbon is not considered an impurity) including boron, where:
BEz (ppm) = CF × concentration of element Z (in ppm);
CF is the conversion factor: (σz × AB) divided by (σB × Az);
σB and σz are the thermal neutron capture cross sections (in barns) for naturally occurring boron and
element Z respectively; and AB and Az are the atomic masses of naturally occurring boron and element Z respectively.
Reprocessing irradiated nuclear fuel separates plutonium and uranium from intensely radioactive fission products and other transuranic elements. Different technical processes can accomplish this separation. However, over the years Purex has become the most commonly used and accepted process. Purex involves the dissolution of irradiated nuclear fuel in nitric acid, followed by separation of the uranium, plutonium, and fission products by solvent extraction using a mixture of tributyl phosphate in an organic diluent.
Purex facilities have process functions similar to each other, including: irradiated fuel element chopping, fuel dissolution, solvent extraction, and process liquor storage. There may also be equipment for thermal denitration of uranium nitrate, conversion of plutonium nitrate to oxide or metal, and treatment of fission product waste liquor to a form suitable for long term storage or disposal. However, the specific type and configuration of the equipment performing these functions may differ between Purex facilities for several reasons, including the type and quantity of irradiated nuclear fuel to be reprocessed and the intended disposition of the recovered materials, and the safety and maintenance philosophy incorporated into the design of the facility.
A “plant for the reprocessing of irradiated fuel elements”, includes the equipment and components which normally come in direct contact with and directly control the irradiated fuel and the major nuclear material and fission product processing streams.
These processes, including the complete systems for plutonium conversion and plutonium metal production, may be identified by the measures taken to avoid criticality (e.g. by geometry), radiation exposure (e.g. by shielding), and toxicity hazards (e.g. by containment).
The export of the whole set of major items within this boundary will take place only in accordance with the procedures of the Guidelines.
The Government reserves to itself the right to apply the procedures of the Guidelines to other items within the functionally defined boundary as listed below.
Items of equipment that are considered to fall within the meaning of the phrase “and equipment especially designed or prepared” for the reprocessing of irradiated fuel elements include:
Remotely operated equipment especially designed or prepared for use in a reprocessing plant as identified above and intended to cut, chop or shear irradiated nuclear fuel assemblies, bundles or rods.
This equipment breaches the cladding of the fuel to expose the irradiated nuclear material to dissolution. Especially designed metal cutting shears are the most commonly employed, although advanced equipment, such as lasers, may be used.
Critically safe tanks (e.g. small diameter, annular or slab tanks) especially designed or prepared for use in a reprocessing plant as identified above, intended for dissolution of irradiated nuclear fuel and which are capable of withstanding hot, highly corrosive liquid, and which can be remotely loaded and maintained.
Dissolvers normally receive the chopped-up spent fuel. In these critically safe vessels, the irradiated nuclear material is dissolved in nitric acid and the remaining hulls removed from the process stream.
Especially designed or prepared solvent extractors such as packed or pulse columns, mixer settlers or centrifugal contactors for use in a plant for the reprocessing of irradiated fuel. Solvent extractors must be resistant to the corrosive effect of nitric acid. Solvent extractors are normally fabricated to extremely high standards (including special welding and inspection and quality assurance and quality control techniques) out of low carbon stainless steels, titanium, zirconium, or other high quality materials.
Solvent extractors both receive the solution of irradiated fuel from the dissolvers and the organic solution which separates the uranium, plutonium, and fission products. Solvent extraction equipment is normally designed to meet strict operating parameters, such as long operating lifetimes with no maintenance requirements or adaptability to easy replacement, simplicity of operation and control, and flexibility for variations in process conditions.
Especially designed or prepared holding or storage vessels for use in a plant for the reprocessing of irradiated fuel. The holding or storage vessels must be resistant to the corrosive effect of nitric acid. The holding or storage vessels are normally fabricated of materials such as low carbon stainless steels, titanium or zirconium, or other high quality materials. Holding or storage vessels may be designed for remote operation and maintenance and may have the following features for control of nuclear criticality:
walls or internal structures with a boron equivalent of at least two per cent, or
a maximum diameter of 175 mm (7 in) for cylindrical vessels, or
a maximum width of 75 mm (3 in) for either a slab or annular vessel.
Three main process liquor streams result from the solvent extraction step. Holding or storage vessels are used in the further processing of all three streams, as follows:
The pure uranium nitrate solution is concentrated by evaporation and passed to a denitration process where it is converted to uranium oxide. This oxide is re-used in the nuclear fuel cycle.
The intensely radioactive fission products solution is normally concentrated by evaporation and stored as a liquor concentrate. This concentrate may be subsequently evaporated and converted to a form suitable for storage or disposal.
The pure plutonium nitrate solution is concentrated and stored pending its transfer to further process steps. In particular, holding or storage vessels for plutonium solutions are designed to avoid criticality problems resulting from changes in concentration and form of this stream.
Neutron measurement systems especially designed or prepared for integration and use with automated process control systems in a plant for the reprocessing of irradiated fuel elements.
These systems involve the capability of active and passive neutron measurement and discrimination in order to determine the fissile material quantity and composition. The complete system is composed of a neutron generator, a neutron detector, amplifiers, and signal processing electronics.
The scope of this entry does not include neutron detection and measurement instruments that are designed for nuclear material accountancy and safeguarding or any other application not related to integration and use with automated process control systems in a plant for the reprocessing of irradiated fuel elements.
Nuclear fuel elements are manufactured from one or more of the source or special fissionable materials mentioned in MATERIAL AND EQUIPMENT of this annex. For oxide fuels, the most common type of fuel, equipment for pressing pellets, sintering, grinding and grading will be present. Mixed oxide fuels are handled in glove boxes (or equivalent containment) until they are sealed in the cladding. In all cases, the fuel is hermetically sealed inside a suitable cladding which is designed to be the primary envelope encasing the fuel so as to provide suitable performance and safety during reactor operation. Also, in all cases, precise control of processes, procedures and equipment to extremely high standards is necessary in order to ensure predictable and safe fuel performance.
Items of equipment that are considered to fall within the meaning of the phrase “and equipment especially designed or prepared” for the fabrication of fuel elements include equipment which:
normally comes in direct contact with, or directly processes, or controls, the production flow of nuclear material;
seals the nuclear material within the cladding;
checks the integrity of the cladding or the seal;
checks the finish treatment of the sealed fuel; or
is used for assembling reactor fuel elements.
Such equipment or systems of equipment may include, for example:
fully automatic pellet inspection stations especially designed or prepared for checking final dimensions and surface defects of the fuel pellets;
automatic welding machines especially designed or prepared for welding end caps onto the fuel pins (or rods);
automatic test and inspection stations especially designed or prepared for checking the integrity of completed fuel pins (or rods);
systems especially designed or prepared to manufacture nuclear fuel cladding.
Item 3 typically includes equipment for: a) x-ray examination of pin (or rod) end cap welds, b) helium leak detection from pressurized pins (or rods), and c) gamma-ray scanning of the pins (or rods) to check for correct loading of the fuel pellets inside.
Plants, equipment and technology for the separation of uranium isotopes have, in many instances, a close relationship to plants, equipment and technology for isotope separation of “other elements”. In particular cases, the controls under Section 5 also apply to plants and equipment that are intended for isotope separation of “other elements”. These controls of plants and equipment for isotope separation of “other elements” are complementary to controls on plants and equipment especially designed or prepared for the processing, use or production of special fissionable material covered by the Trigger List. These complementary Section 5 controls for uses involving “other elements” do not apply to the electromagnetic isotope separation process, which is addressed under Part 2 of the Guidelines.
Processes for which the controls in Section 5 equally apply whether the intended use is uranium isotope separation or isotope separation of “other elements” are: gas centrifuge, gaseous diffusion, the plasma separation process, and aerodynamic processes.
For some processes, the relationship to uranium isotope separation depends on the element being separated. These processes are: laser-based processes (e.g. molecular laser isotope separation and atomic vapour laser isotope separation), chemical exchange, and ion exchange. Suppliers must therefore evaluate these processes on a case-by-case basis to apply Section 5 controls for uses involving “other elements” accordingly.
Items of equipment that are considered to fall within the meaning of the phrase “equipment, other than analytical instruments, especially designed or prepared” for the separation of isotopes of uranium include:
The gas centrifuge normally consists of a thin-walled cylinder(s) of between 75 mm and 650 mm diameter contained in a vacuum environment and spun at high peripheral speed of the order of 300 m/s or more with its central axis vertical. In order to achieve high speed the materials of construction for the rotating components have to be of a high strength to density ratio and the rotor assembly, and hence its individual components, have to be manufactured to very close tolerances in order to minimize the unbalance. In contrast to other centrifuges, the gas centrifuge for uranium enrichment is characterized by having within the rotor chamber a rotating disc-shaped baffle(s) and a stationary tube arrangement for feeding and extracting the UF6 gas and featuring at least three separate channels, of which two are connected to scoops extending from the rotor axis towards the periphery of the rotor chamber. Also contained within the vacuum environment are a number of critical items which do not rotate and which although they are especially designed are not difficult to fabricate nor are they fabricated out of unique materials. A centrifuge facility however requires a large number of these components, so that quantities can provide an important indication of end use.
Complete rotor assemblies:
Thin-walled cylinders, or a number of interconnected thin-walled cylinders, manufactured from one or more of the high strength to density ratio materials described in the EXPLANATORY NOTE to this Section. If interconnected, the cylinders are joined together by flexible bellows or rings as described in section 5.1.1.(c) following. The rotor is fitted with an internal baffle(s) and end caps, as described in section 5.1.1.(d) and (e) following, if in final form. However the complete assembly may be delivered only partly assembled.
Rotor tubes:
Especially designed or prepared thin-walled cylinders with thickness of 12 mm or less, a diameter of between 75 mm and 650 mm, and manufactured from one or more of the high strength to density ratio materials described in the EXPLANATORY NOTE to this Section.
Rings or Bellows:
Components especially designed or prepared to give localized support to the rotor tube or to join together a number of rotor tubes. The bellows is a short cylinder of wall thickness 3 mm or less, a diameter of between 75 mm and 650 mm, having a convolute, and manufactured from one of the high strength to density ratio materials described in the EXPLANATORY NOTE to this Section.
Baffles:
Disc-shaped components of between 75 mm and 650 mm diameter especially designed or prepared to be mounted inside the centrifuge rotor tube, in order to isolate the take-off chamber from the main separation chamber and, in some cases, to assist the UF6 gas circulation within the main separation chamber of the rotor tube, and manufactured from one of the high strength to density ratio materials described in the EXPLANATORY NOTE to this Section.
Top caps/Bottom caps:
Disc-shaped components of between 75 mm and 650 mm diameter especially designed or prepared to fit to the ends of the rotor tube, and so contain the UF6 within the rotor tube, and in some cases to support, retain or contain as an integrated part an element of the upper bearing (top cap) or to carry the rotating elements of the motor and lower bearing (bottom cap), and manufactured from one of the high strength to density ratio materials described in the EXPLANATORY NOTE to this Section.
The materials used for centrifuge rotating components include the following:
Maraging steel capable of an ultimate tensile strength of 1.95 GPa or more;
Aluminium alloys capable of an ultimate tensile strength of 0.46 GPa or more;
Filamentary materials suitable for use in composite structures and having a specific modulus of 3.18 × 106 m or greater and a specific ultimate tensile strength of 7.62 × 104 m or greater (“Specific Modulus” is the Young's Modulus in N/m2 divided by the specific weight in N/m3; “Specific Ultimate Tensile Strength” is the ultimate tensile strength in N/m2 divided by the specific weight in N/m3).
Magnetic suspension bearings:
Especially designed or prepared bearing assemblies consisting of an annular magnet suspended within a housing containing a damping medium. The housing will be manufactured from a UF6 -resistant material (see EXPLANATORY NOTE to Section 5.2.). The magnet couples with a pole piece or a second magnet fitted to the top cap described in Section 5.1.1.(e). The magnet may be ring-shaped with a relation between outer and inner diameter smaller or equal to 1.6:1. The magnet may be in a form having an initial permeability of 0.15 H/m or more, or a remanence of 98.5 % or more, or an energy product of greater than 80 kJ/m3. In addition to the usual material properties, it is a prerequisite that the deviation of the magnetic axes from the geometrical axes is limited to very small tolerances (lower than 0.1 mm) or that homogeneity of the material of the magnet is specially called for.
Active magnetic bearings especially designed or prepared for use with gas centrifuges.
These bearings usually have the following characteristics:
Designed to keep centred a rotor spinning at 600 Hz or more, and
Associated to a reliable electrical power supply and/or to an uninterruptible power supply (UPS) unit in order to function for more than one hour.
Bearings/Dampers:
Especially designed or prepared bearings comprising a pivot/cup assembly mounted on a damper. The pivot is normally a hardened steel shaft with a hemisphere at one end with a means of attachment to the bottom cap described in section 5.1.1.(e) at the other. The shaft may however have a hydrodynamic bearing attached. The cup is pellet-shaped with a hemispherical indentation in one surface. These components are often supplied separately to the damper.
Molecular pumps:
Especially designed or prepared cylinders having internally machined or extruded helical grooves and internally machined bores. Typical dimensions are as follows:
75 mm to 650 mm internal diameter, 10 mm or more wall thickness, with the length equal to or greater than the diameter. The grooves are typically rectangular in cross-section and 2 mm or more in depth.
Motor stators:
Especially designed or prepared ring-shaped stators for high speed multiphase AC hysteresis (or reluctance) motors for synchronous operation within a vacuum at a frequency of 600 Hz or greater and a power of 40 VA or greater. The stators may consist of multi-phase windings on a laminated low loss iron core comprised of thin layers typically 2.0 mm thick or less.
Centrifuge housing/recipients:
Components especially designed or prepared to contain the rotor tube assembly of a gas centrifuge. The housing consists of a rigid cylinder of wall thickness up to 30 mm with precision machined ends to locate the bearings and with one or more flanges for mounting. The machined ends are parallel to each other and perpendicular to the cylinder's longitudinal axis to within 0.05 degrees or less. The housing may also be a honeycomb type structure to accommodate several rotor assemblies.
Scoops:
Especially designed or prepared tubes for the extraction of UF6 gas from within the rotor tube by a Pitot tube action (that is, with an aperture facing into the circumferential gas flow within the rotor tube, for example by bending the end of a radially disposed tube) and capable of being fixed to the central gas extraction system.
The auxiliary systems, equipment and components for a gas centrifuge enrichment plant are the systems of plant needed to feed UF6 to the centrifuges, to link the individual centrifuges to each other to form cascades (or stages) to allow for progressively higher enrichments and to extract the “product” and “tails” UF6 from the centrifuges, together with the equipment required to drive the centrifuges or to control the plant.
Normally UF6 is evaporated from the solid using heated autoclaves and is distributed in gaseous form to the centrifuges by way of cascade header pipework. The “product” and “tails” UF6 gaseous streams flowing from the centrifuges are also passed by way of cascade header pipework to cold traps (operating at about 203 K (– 70 °C)) where they are condensed prior to onward transfer into suitable containers for transportation or storage. Because an enrichment plant consists of many thousands of centrifuges arranged in cascades there are many kilometers of cascade header pipework, incorporating thousands of welds with a substantial amount of repetition of layout. The equipment, components and piping systems are fabricated to very high vacuum and cleanliness standards.
Some of the items listed below either come into direct contact with the UF6 process gas or directly control the centrifuges and the passage of the gas from centrifuge to centrifuge and cascade to cascade. Materials resistant to corrosion by UF6 include copper, copper alloys, stainless steel, aluminium, aluminium oxide, aluminium alloys, nickel or alloys containing 60 % or more nickel and fluorinated hydrocarbon polymers.
Especially designed or prepared process systems or equipment for enrichment plants made of or protected by materials resistant to corrosion by UF6, including:
Feed autoclaves, ovens, or systems used for passing UF6 to the enrichment process;
Desublimers, cold traps or pumps used to remove UF6 from the enrichment process for subsequent transfer upon heating;
Solidification or liquefaction stations used to remove UF6 from the enrichment process by compressing and converting UF6 to a liquid or solid form;
“Product” or “tails” stations used for transferring UF6 into containers.
Especially designed or prepared piping systems and header systems for handling UF6 within the centrifuge cascades. The piping network is normally of the “triple” header system with each centrifuge connected to each of the headers. There is thus a substantial amount of repetition in its form. It is wholly made of or protected by UF6 -resistant materials (see EXPLANATORY NOTE to this section) and is fabricated to very high vacuum and cleanliness standards.
Shut-off valves especially designed or prepared to act on the feed, product or tails UF6 gaseous streams of an individual gas centrifuge.
Bellows-sealed valves, manual or automated, shut-off or control, made of or protected by materials resistant to corrosion by UF6, with an inside diameter of 10 to 160 mm, especially designed or prepared for use in main or auxiliary systems of gas centrifuge enrichment plants.
Typical especially designed or prepared valves include bellow-sealed valves, fast acting closure-types, fast acting valves and others.
Especially designed or prepared mass spectrometers capable of taking on-line samples from UF6 gas streams and having all of the following:
Capable of measuring ions of 320 atomic mass units or greater and having a resolution of better than 1 part in 320;
Ion sources constructed of or protected by nickel, nickel-copper alloys with a nickel content of 60 % or more by weight, or nickel-chrome alloys;
Electron bombardment ionization sources;
Having a collector system suitable for isotopic analysis.
Frequency changers (also known as converters or inverters) especially designed or prepared to supply motor stators as defined under 5.1.2.(d), or parts, components and sub-assemblies of such frequency changers having all of the following characteristics:
A multiphase frequency output of 600 Hz or greater; and
High stability (with frequency control better than 0.2 %).
In the gaseous diffusion method of uranium isotope separation, the main technological assembly is a special porous gaseous diffusion barrier, heat exchanger for cooling the gas (which is heated by the process of compression), seal valves and control valves, and pipelines. Inasmuch as gaseous diffusion technology uses uranium hexafluoride (UF6 ), all equipment, pipeline and instrumentation surfaces (that come in contact with the gas) must be made of materials that remain stable in contact with UF6. A gaseous diffusion facility requires a number of these assemblies, so that quantities can provide an important indication of end use.
Especially designed or prepared thin, porous filters, with a pore size of 10 - 100 nm, a thickness of 5 mm or less, and for tubular forms, a diameter of 25 mm or less, made of metallic, polymer or ceramic materials resistant to corrosion by UF6 (see EXPLANATORY NOTE to section 5.4), and
especially prepared compounds or powders for the manufacture of such filters. Such compounds and powders include nickel or alloys containing 60 % or more nickel, aluminium oxide, or UF6 -resistant fully fluorinated hydrocarbon polymers having a purity of 99.9 % by weight or more, a particle size less than 10 μm, and a high degree of particle size uniformity, which are especially prepared for the manufacture of gaseous diffusion barriers.
Especially designed or prepared hermetically sealed vessels for containing the gaseous diffusion barrier, made of or protected by UF6 -resistant materials (see EXPLANATORY NOTE to section 5.4).
Especially designed or prepared compressors or gas blowers with a suction volume capacity of 1 m3 per minute or more of UF6, and with a discharge pressure of up to 500 kPa, designed for long-term operation in the UF6 environment, as well as separate assemblies of such compressors and gas blowers. These compressors and gas blowers have a pressure ratio of 10:1 or less and are made of, or protected by, materials resistant to UF6 (see EXPLANATORY NOTE to section 5.4).
Especially designed or prepared vacuum seals, with seal feed and seal exhaust connections, for sealing the shaft connecting the compressor or the gas blower rotor with the driver motor so as to ensure a reliable seal against in-leaking of air into the inner chamber of the compressor or gas blower which is filled with UF6. Such seals are normally designed for a buffer gas in-leakage rate of less than 1 000 cm3 per minute.
Especially designed or prepared heat exchangers made of or protected by UF6 -resistant materials (see EXPLANATORY NOTE to section 5.4), and intended for a leakage pressure change rate of less than 10 Pa per hour under a pressure difference of 100 kPa.
The auxiliary systems, equipment and components for gaseous diffusion enrichment plants are the systems of plant needed to feed UF6 to the gaseous diffusion assembly, to link the individual assemblies to each other to form cascades (or stages) to allow for progressively higher enrichments and to extract the “product” and “tails” UF6 from the diffusion cascades. Because of the high inertial properties of diffusion cascades, any interruption in their operation, and especially their shut-down, leads to serious consequences. Therefore, a strict and constant maintenance of vacuum in all technological systems, automatic protection from accidents, and precise automated regulation of the gas flow is of importance in a gaseous diffusion plant. All this leads to a need to equip the plant with a large number of special measuring, regulating and controlling systems.
Normally UF6 is evaporated from cylinders placed within autoclaves and is distributed in gaseous form to the entry point by way of cascade header pipework. The “product” and “tails” UF6 gaseous streams flowing from exit points are passed by way of cascade header pipework to either cold traps or to compression stations where the UF6 gas is liquefied prior to onward transfer into suitable containers for transportation or storage. Because a gaseous diffusion enrichment plant consists of a large number of gaseous diffusion assemblies arranged in cascades, there are many kilometers of cascade header pipework, incorporating thousands of welds with substantial amounts of repetition of layout. The equipment, components and piping systems are fabricated to very high vacuum and cleanliness standards.
The items listed below either come into direct contact with the UF6 process gas or directly control the flow within the cascade. Materials resistant to corrosion by UF6 include copper, copper alloys, stainless steel, aluminium, aluminium oxide, aluminium alloys, nickel or alloys containing 60 % or more nickel and fluorinated hydrocarbon polymers.
Especially designed or prepared process systems or equipment for enrichment plants made of or protected by materials resistant to corrosion by UF6, including:
Feed autoclaves, ovens, or systems used for passing UF6 to the enrichment process;
Desublimers, cold traps or pumps used to remove UF6 from the enrichment process for subsequent transfer upon heating;
Solidification or liquefaction stations used to remove UF6 from the enrichment process by compressing and converting UF6 to a liquid or solid form;
“Product” or “tails” stations used for transferring UF6 into containers.
Especially designed or prepared piping systems and header systems for handling UF6 within the gaseous diffusion cascades.
This piping network is normally of the “double” header system with each cell connected to each of the headers.
Especially designed or prepared vacuum manifolds, vacuum headers and vacuum pumps having a suction capacity of 5 m3 per minute or more.
Vacuum pumps especially designed for service in UF6 -bearing atmospheres made of, or protected by, materials resistant to corrosion by UF6 (see EXPLANATORY NOTE to this section). These pumps may be either rotary or positive, may have displacement and fluorocarbon seals, and may have special working fluids present.
Especially designed or prepared bellows-sealed valves, manual or automated, shut-off or control, made of or protected by materials resistant to corrosion by UF6, for installation in main and auxiliary systems of gaseous diffusion enrichment plants.
Especially designed or prepared mass spectrometers capable of taking on-line samples from UF6 gas streams and having all of the following:
Capable of measuring ions of 320 atomic mass units or greater and having a resolution of better than 1 part in 320;
Ion sources constructed of or protected by nickel, nickel-copper alloys with a nickel content of 60 % or more by weight, or nickel-chrome alloys;
Electron bombardment ionization sources;
Having a collector system suitable for isotopic analysis.
In aerodynamic enrichment processes, a mixture of gaseous UF6 and light gas (hydrogen or helium) is compressed and then passed through separating elements wherein isotopic separation is accomplished by the generation of high centrifugal forces over a curved-wall geometry. Two processes of this type have been successfully developed: the separation nozzle process and the vortex tube process. For both processes the main components of a separation stage include cylindrical vessels housing the special separation elements (nozzles or vortex tubes), gas compressors and heat exchangers to remove the heat of compression. An aerodynamic plant requires a number of these stages, so that quantities can provide an important indication of end use. Since aerodynamic processes use UF6, all equipment, pipeline and instrumentation surfaces (that come in contact with the gas) must be made of or protected by materials that remain stable in contact with UF6.
The items listed in this section either come into direct contact with the UF6 process gas or directly control the flow within the cascade. All surfaces which come into contact with the process gas are wholly made of or protected by UF6 -resistant materials. For the purposes of the section relating to aerodynamic enrichment items, the materials resistant to corrosion by UF6 include copper, copper alloys, stainless steel, aluminium, aluminium oxide, aluminium alloys, nickel or alloys containing 60 % or more nickel by weight and fluorinated hydrocarbon polymers.
Especially designed or prepared separation nozzles and assemblies thereof. The separation nozzles consist of slit-shaped, curved channels having a radius of curvature less than 1 mm, resistant to corrosion by UF6 and having a knife-edge within the nozzle that separates the gas flowing through the nozzle into two fractions.
Especially designed or prepared vortex tubes and assemblies thereof. The vortex tubes are cylindrical or tapered, made of or protected by materials resistant to corrosion by UF6, and with one or more tangential inlets. The tubes may be equipped with nozzle- type appendages at either or both ends.
The feed gas enters the vortex tube tangentially at one end or through swirl vanes or at numerous tangential positions along the periphery of the tube.
Especially designed or prepared compressors or gas blowers made of or protected by materials resistant to corrosion by the UF6/carrier gas (hydrogen or helium) mixture.
Especially designed or prepared rotary shaft seals, with seal feed and seal exhaust connections, for sealing the shaft connecting the compressor rotor or the gas blower rotor with the driver motor so as to ensure a reliable seal against out-leakage of process gas or in-leakage of air or seal gas into the inner chamber of the compressor or gas blower which is filled with a UF6/carrier gas mixture.
Especially designed or prepared heat exchangers made of or protected by materials resistant to corrosion by UF6.
Especially designed or prepared separation element housings, made of or protected by materials resistant to corrosion by UF6, for containing vortex tubes or separation nozzles.
Especially designed or prepared process systems or equipment for enrichment plants made of or protected by materials resistant to corrosion by UF6, including:
Feed autoclaves, ovens, or systems used for passing UF6 to the enrichment process;
Desublimers (or cold traps) used to remove UF6 from the enrichment process for subsequent transfer upon heating;
Solidification or liquefaction stations used to remove UF6 from the enrichment process by compressing and converting UF6 to a liquid or solid form;
“Product” or “tails” stations used for transferring UF6 into containers.
Especially designed or prepared header piping systems, made of or protected by materials resistant to corrosion by UF6, for handling UF6 within the aerodynamic cascades. This piping network is normally of the “double” header design with each stage or group of stages connected to each of the headers.
Especially designed or prepared vacuum systems consisting of vacuum manifolds, vacuum headers and vacuum pumps, and designed for service in UF6 -bearing atmospheres,
Vacuum pumps especially designed or prepared for service in UF6 -bearing atmospheres and made of or protected by materials resistant to corrosion by UF6. These pumps may use fluorocarbon seals and special working fluids.
Especially designed or prepared bellows-sealed valves, manual or automated, shut-off or control, made of or protected by materials resistant to corrosion by UF6, with a diameter of 40 mm or greater, for installation in main and auxiliary systems of aerodynamic enrichment plants.
Especially designed or prepared mass spectrometers capable of taking on-line samples from UF6 gas streams and having all of the following:
Capable of measuring ions of 320 atomic mass units or greater and having a resolution of better than 1 part in 320;
Ion sources constructed of or protected by nickel, nickel-copper alloys with a nickel content of 60 % or more by weight, or nickel-chrome alloys;
Electron bombardment ionization sources;
Having a collector system suitable for isotopic analysis.
Especially designed or prepared process systems for separating UF6 from carrier gas (hydrogen or helium).
These systems are designed to reduce the UF6 content in the carrier gas to 1 ppm or less and may incorporate equipment such as:
Cryogenic heat exchangers and cryoseparators capable of temperatures of 153 K (– 120 °C) or less, or
Cryogenic refrigeration units capable of temperatures of 153 K (– 120 °C) or less, or
Separation nozzle or vortex tube units for the separation of UF6 from carrier gas, or
UF6 cold traps capable of freezing out UF6.
The slight difference in mass between the isotopes of uranium causes small changes in chemical reaction equilibria that can be used as a basis for separation of the isotopes. Two processes have been successfully developed: liquid-liquid chemical exchange and solid-liquid ion exchange.
In the liquid-liquid chemical exchange process, immiscible liquid phases (aqueous and organic) are countercurrently contacted to give the cascading effect of thousands of separation stages. The aqueous phase consists of uranium chloride in hydrochloric acid solution; the organic phase consists of an extractant containing uranium chloride in an organic solvent. The contactors employed in the separation cascade can be liquid-liquid exchange columns (such as pulsed columns with sieve plates) or liquid centrifugal contactors. Chemical conversions (oxidation and reduction) are required at both ends of the separation cascade in order to provide for the reflux requirements at each end. A major design concern is to avoid contamination of the process streams with certain metal ions. Plastic, plastic-lined (including use of fluorocarbon polymers) and/or glass-lined columns and piping are therefore used.
In the solid-liquid ion-exchange process, enrichment is accomplished by uranium adsorption/desorption on a special, very fast-acting, ion-exchange resin or adsorbent. A solution of uranium in hydrochloric acid and other chemical agents is passed through cylindrical enrichment columns containing packed beds of the adsorbent. For a continuous process, a reflux system is necessary to release the uranium from the adsorbent back into the liquid flow so that “product” and “tails” can be collected. This is accomplished with the use of suitable reduction/oxidation chemical agents that are fully regenerated in separate external circuits and that may be partially regenerated within the isotopic separation columns themselves. The presence of hot concentrated hydrochloric acid solutions in the process requires that the equipment be made of or protected by special corrosion-resistant materials.
Countercurrent liquid-liquid exchange columns having mechanical power input, especially designed or prepared for uranium enrichment using the chemical exchange process. For corrosion resistance to concentrated hydrochloric acid solutions, these columns and their internals are normally made of or protected by suitable plastic materials (such as fluorinated hydrocarbon polymers) or glass. The stage residence time of the columns is normally designed to be 30 seconds or less.
Liquid-liquid centrifugal contactors especially designed or prepared for uranium enrichment using the chemical exchange process. Such contactors use rotation to achieve dispersion of the organic and aqueous streams and then centrifugal force to separate the phases. For corrosion resistance to concentrated hydrochloric acid solutions, the contactors are normally made of or protected by suitable plastic materials (such as fluorinated hydrocarbon polymers) or glass. The stage residence time of the centrifugal contactors is normally designed to be 30 seconds or less.
Especially designed or prepared electrochemical reduction cells to reduce uranium from one valence state to another for uranium enrichment using the chemical exchange process. The cell materials in contact with process solutions must be corrosion resistant to concentrated hydrochloric acid solutions.
The cell cathodic compartment must be designed to prevent re-oxidation of uranium to its higher valence state. To keep the uranium in the cathodic compartment, the cell may have an impervious diaphragm membrane constructed of special cation exchange material. The cathode consists of a suitable solid conductor such as graphite.
Especially designed or prepared systems at the product end of the cascade for taking the U+4 out of the organic stream, adjusting the acid concentration and feeding to the electrochemical reduction cells.
These systems consist of solvent extraction equipment for stripping the U+4 from the organic stream into an aqueous solution, evaporation and/or other equipment to accomplish solution pH adjustment and control, and pumps or other transfer devices for feeding to the electrochemical reduction cells. A major design concern is to avoid contamination of the aqueous stream with certain metal ions. Consequently, for those parts in contact with the process stream, the system is constructed of equipment made of or protected by suitable materials (such as glass, fluorocarbon polymers, polyphenyl sulfate, polyether sulfone, and resin- impregnated graphite).
Especially designed or prepared systems for producing high-purity uranium chloride feed solutions for chemical exchange uranium isotope separation plants.
These systems consist of dissolution, solvent extraction and/or ion exchange equipment for purification and electrolytic cells for reducing the uranium U+6 or U+4 to U+3. These systems produce uranium chloride solutions having only a few parts per million of metallic impurities such as chromium, iron, vanadium, molybdenum and other bivalent or higher multi-valent cations. Materials of construction for portions of the system processing high-purity U+3 include glass, fluorinated hydrocarbon polymers, polyphenyl sulfate or polyether sulfone plastic-lined and resin-impregnated graphite.
Especially designed or prepared systems for oxidation of U+3 to U+4 for return to the uranium isotope separation cascade in the chemical exchange enrichment process.
These systems may incorporate equipment such as:
Equipment for contacting chlorine and oxygen with the aqueous effluent from the isotope separation equipment and extracting the resultant U+4 into the stripped organic stream returning from the product end of the cascade,
Equipment that separates water from hydrochloric acid so that the water and the concentrated hydrochloric acid may be reintroduced to the process at the proper locations.
Fast-reacting ion-exchange resins or adsorbents especially designed or prepared for uranium enrichment using the ion exchange process, including porous macroreticular resins, and/or pellicular structures in which the active chemical exchange groups are limited to a coating on the surface of an inactive porous support structure, and other composite structures in any suitable form including particles or fibres. These ion exchange resins/adsorbents have diameters of 0.2 mm or less and must be chemically resistant to concentrated hydrochloric acid solutions as well as physically strong enough so as not to degrade in the exchange columns. The resins/adsorbents are especially designed to achieve very fast uranium isotope exchange kinetics (exchange rate half-time of less than 10 seconds) and are capable of operating at a temperature in the range of 373 K (100 °C) to 473 K (200 °C).
Cylindrical columns greater than 1 000 mm in diameter for containing and supporting packed beds of ion exchange resin/adsorbent, especially designed or prepared for uranium enrichment using the ion exchange process. These columns are made of or protected by materials (such as titanium or fluorocarbon plastics) resistant to corrosion by concentrated hydrochloric acid solutions and are capable of operating at a temperature in the range of 373 K (100 °C) to 473 K (200 °C) and pressures above 0.7 MPa.
Especially designed or prepared chemical or electrochemical reduction systems for regeneration of the chemical reducing agent(s) used in ion exchange uranium enrichment cascades.
Especially designed or prepared chemical or electrochemical oxidation systems for regeneration of the chemical oxidizing agent(s) used in ion exchange uranium enrichment cascades.
The ion exchange enrichment process may use, for example, trivalent titanium (Ti+3) as a reducing cation in which case the reduction system would regenerate Ti+3 by reducing Ti+4.
The process may use, for example, trivalent iron (Fe+3) as an oxidant in which case the oxidation system would regenerate Fe+3 by oxidizing Fe+2.
Present systems for enrichment processes using lasers fall into two categories: those in which the process medium is atomic uranium vapour and those in which the process medium is the vapour of a uranium compound, sometimes mixed with another gas or gases. Common nomenclature for such processes include:
first category — atomic vapour laser isotope separation;
second category — molecular laser isotope separation, including chemical reaction by isotope selective laser activation.
The systems, equipment and components for laser enrichment plants embrace: (a) devices to feed uranium-metal vapour (for selective photo-ionization) or devices to feed the vapour of a uranium compound (for selective photo-dissociation or selective excitation/activation); (b) devices to collect enriched and depleted uranium metal as “product” and “tails” in the first category, and devices to collect enriched and depleted uranium compounds as “product” and “tails” in the second category; (c) process laser systems to selectively excite the uranium-235 species; and (d) feed preparation and product conversion equipment. The complexity of the spectroscopy of uranium atoms and compounds may require incorporation of any of a number of available laser and laser optics technologies.
Many of the items listed in this section come into direct contact with uranium metal vapour or liquid or with process gas consisting of UF6 or a mixture of UF6 and other gases. All surfaces that come into direct contact with the uranium or UF6 are wholly made of or protected by corrosion-resistant materials. For the purposes of the section relating to laser-based enrichment items, the materials resistant to corrosion by the vapour or liquid of uranium metal or uranium alloys include yttria-coated graphite and tantalum; and the materials resistant to corrosion by UF6 include copper, copper alloys, stainless steel, aluminium, aluminium oxide, aluminium alloys, nickel or alloys containing 60 % or more nickel by weight and fluorinated hydrocarbon polymers.
Especially designed or prepared uranium metal vaporization systems for use in laser enrichment.
These systems may contain electron beam guns and are designed to achieve a delivered power (1 kW or greater) on the target sufficient to generate uranium metal vapour at a rate required for the laser enrichment function.
Especially designed or prepared systems for handling molten uranium, molten uranium alloys or uranium metal vapour for use in laser enrichment or especially designed or prepared components therefore.
The liquid uranium metal handling systems may consist of crucibles and cooling equipment for the crucibles. The crucibles and other parts of this system that come into contact with molten uranium, molten uranium alloys or uranium metal vapour are made of or protected by materials of suitable corrosion and heat resistance. Suitable materials may include tantalum, yttria-coated graphite, graphite coated with other rare earth oxides (see INFCIRC/254/Part 2 — (as amended)) or mixtures thereof.
Especially designed or prepared “product” and “tails” collector assemblies for uranium metal in liquid or solid form.
Components for these assemblies are made of or protected by materials resistant to the heat and corrosion of uranium metal vapour or liquid (such as yttria-coated graphite or tantalum) and may include pipes, valves, fittings, “gutters”, feed-throughs, heat exchangers and collector plates for magnetic, electrostatic or other separation methods.
Especially designed or prepared cylindrical or rectangular vessels for containing the uranium metal vapour source, the electron beam gun, and the “product” and “tails” collectors.
These housings have multiplicity of ports for electrical and water feed-throughs, laser beam windows, vacuum pump connections and instrumentation diagnostics and monitoring. They have provisions for opening and closure to allow refurbishment of internal components.
Especially designed or prepared supersonic expansion nozzles for cooling mixtures of UF6 and carrier gas to 150 K (– 123 °C) or less and which are corrosion resistant to UF6.
Especially designed or prepared components or devices for collecting uranium product material or uranium tails material following illumination with laser light.
In one example of molecular laser isotope separation, the product collectors serve to collect enriched uranium pentafluoride (UF5) solid material. The product collectors may consist of filter, impact, or cyclone-type collectors, or combinations thereof, and must be corrosion resistant to the UF5/UF6 environment.
Especially designed or prepared compressors for UF6/carrier gas mixtures, designed for long term operation in a UF6 environment. The components of these compressors that come into contact with process gas are made of or protected by materials resistant to corrosion by UF6.
Especially designed or prepared rotary shaft seals, with seal feed and seal exhaust connections, for sealing the shaft connecting the compressor rotor with the driver motor so as to ensure a reliable seal against out-leakage of process gas or in-leakage of air or seal gas into the inner chamber of the compressor which is filled with a UF6/carrier gas mixture.
Especially designed or prepared systems for fluorinating UF5 (solid) to UF6 (gas).
These systems are designed to fluorinate the collected UF5 powder to UF6 for subsequent collection in product containers or for transfer as feed for additional enrichment. In one approach, the fluorination reaction may be accomplished within the isotope separation system to react and recover directly off the “product” collectors. In another approach, the UF5 powder may be removed/transferred from the “product” collectors into a suitable reaction vessel (e.g., fluidized-bed reactor, screw reactor or flame tower) for fluorination. In both approaches, equipment for storage and transfer of fluorine (or other suitable fluorinating agents) and for collection and transfer of UF6 are used.
Especially designed or prepared mass spectrometers capable of taking on-line samples from UF6 gas streams and having all of the following:
Capable of measuring ions of 320 atomic mass units or greater and having a resolution of better than 1 part in 320;
Ion sources constructed of or protected by nickel, nickel-copper alloys with a nickel content of 60 % or more by weight, or nickel-chrome alloys;
Electron bombardment ionization sources;
Having a collector system suitable for isotopic analysis.
Especially designed or prepared process systems or equipment for enrichment plants made of or protected by materials resistant to corrosion by UF6, including:
Feed autoclaves, ovens, or systems used for passing UF6 to the enrichment process;
Desublimers (or cold traps) used to remove UF6 from the enrichment process for subsequent transfer upon heating;
Solidification or liquefaction stations used to remove UF6 from the enrichment process by compressing and converting UF6 to a liquid or solid form;
“Product” or “tails” stations used for transferring UF6 into containers.
Especially designed or prepared process systems for separating UF6 from carrier gas.
These systems may incorporate equipment such as:
Cryogenic heat exchangers or cryoseparators capable of temperatures of 153 K (– 120 °C) or less, or
Cryogenic refrigeration units capable of temperatures of 153 K (– 120 °C) or less, or
UF6 cold traps capable of freezing out UF6.
The carrier gas may be nitrogen, argon, or other gas.
Lasers or laser systems especially designed or prepared for the separation of uranium isotopes.
The lasers and laser components of importance in laser-based enrichment processes include those identified in INFCIRC/254/Part 2 — (as amended). The laser system typically contains both optical and electronic components for the management of the laser beam (or beams) and the transmission to the isotope separation chamber. The laser system for atomic vapour based methods usually consists of tunable dye lasers pumped by another type of laser (e.g., copper vapour lasers or certain solid-state lasers). The laser system for molecular based methods may consist of CO2 lasers or excimer lasers and a multi-pass optical cell. Lasers or laser systems for both methods require spectrum frequency stabilization for operation over extended periods of time.
In the plasma separation process, a plasma of uranium ions passes through an electric field tuned to the 235U ion resonance frequency so that they preferentially absorb energy and increase the diameter of their corkscrew-like orbits. Ions with a large- diameter path are trapped to produce a product enriched in 235U. The plasma, which is made by ionizing uranium vapour, is contained in a vacuum chamber with a high- strength magnetic field produced by a superconducting magnet. The main technological systems of the process include the uranium plasma generation system, the separator module with superconducting magnet (see INFCIRC/254/Part 2 — (as amended)), and metal removal systems for the collection of “product” and “tails”.
Especially designed or prepared microwave power sources and antennae for producing or accelerating ions and having the following characteristics: greater than 30 GHz frequency and greater than 50 kW mean power output for ion production.
Especially designed or prepared radio frequency ion excitation coils for frequencies of more than 100 kHz and capable of handling more than 40 kW mean power.
Especially designed or prepared systems for the generation of uranium plasma for use in plasma separation plants.
Especially designed or prepared “product” and “tails” collector assemblies for uranium metal in solid form. These collector assemblies are made of or protected by materials resistant to the heat and corrosion of uranium metal vapor, such as yttria-coated graphite or tantalum.
Cylindrical vessels especially designed or prepared for use in plasma separation enrichment plants for containing the uranium plasma source, radio-frequency drive coil and the “product” and “tails” collectors.
These housings have a multiplicity of ports for electrical feed-throughs, diffusion pump connections and instrumentation diagnostics and monitoring. They have provisions for opening and closure to allow for refurbishment of internal components and are constructed of a suitable non-magnetic material such as stainless steel.
In the electromagnetic process, uranium metal ions produced by ionization of a salt feed material (typically UCl4) are accelerated and passed through a magnetic field that has the effect of causing the ions of different isotopes to follow different paths. The major components of an electromagnetic isotope separator include: a magnetic field for ion-beam diversion/separation of the isotopes, an ion source with its acceleration system, and a collection system for the separated ions. Auxiliary systems for the process include the magnet power supply system, the ion source high-voltage power supply system, the vacuum system, and extensive chemical handling systems for recovery of product and cleaning/recycling of components.
Electromagnetic isotope separators especially designed or prepared for the separation of uranium isotopes, and equipment and components therefor, including:
Ion sources
Especially designed or prepared single or multiple uranium ion sources consisting of a vapour source, ionizer, and beam accelerator, constructed of suitable materials such as graphite, stainless steel, or copper, and capable of providing a total ion beam current of 50 mA or greater.
Ion collectors
Collector plates consisting of two or more slits and pockets especially designed or prepared for collection of enriched and depleted uranium ion beams and constructed of suitable materials such as graphite or stainless steel.
Vacuum housings
Especially designed or prepared vacuum housings for uranium electromagnetic separators, constructed of suitable non-magnetic materials such as stainless steel and designed for operation at pressures of 0.1 Pa or lower.
The housings are specially designed to contain the ion sources, collector plates and water-cooled liners and have provision for diffusion pump connections and opening and closure for removal and reinstallation of these components.
Magnet pole pieces
Especially designed or prepared magnet pole pieces having a diameter greater than 2 m used to maintain a constant magnetic field within an electromagnetic isotope separator and to transfer the magnetic field between adjoining separators.
Especially designed or prepared high-voltage power supplies for ion sources, having all of the following characteristics: capable of continuous operation, output voltage of 20 000 V or greater, output current of 1 A or greater, and voltage regulation of better than 0.01 % over a time period of 8 hours.
Especially designed or prepared high-power, direct current magnet power supplies having all of the following characteristics: capable of continuously producing a current output of 500 A or greater at a voltage of 100 V or greater and with a current or voltage regulation better than 0.01 % over a period of 8 hours.
Heavy water can be produced by a variety of processes. However, the two processes that have proven to be commercially viable are the water-hydrogen sulphide exchange process (GS process) and the ammonia-hydrogen exchange process.
The GS process is based upon the exchange of hydrogen and deuterium between water and hydrogen sulphide within a series of towers which are operated with the top section cold and the bottom section hot. Water flows down the towers while the hydrogen sulphide gas circulates from the bottom to the top of the towers. A series of perforated trays are used to promote mixing between the gas and the water. Deuterium migrates to the water at low temperatures and to the hydrogen sulphide at high temperatures. Gas or water, enriched in deuterium, is removed from the first stage towers at the junction of the hot and cold sections and the process is repeated in subsequent stage towers. The product of the last stage, water enriched up to 30 % in deuterium, is sent to a distillation unit to produce reactor grade heavy water; i.e. 99.75 % deuterium oxide.
The ammonia-hydrogen exchange process can extract deuterium from synthesis gas through contact with liquid ammonia in the presence of a catalyst. The synthesis gas is fed into exchange towers and to an ammonia converter. Inside the towers the gas flows from the bottom to the top while the liquid ammonia flows from the top to the bottom. The deuterium is stripped from the hydrogen in the synthesis gas and concentrated in the ammonia. The ammonia then flows into an ammonia cracker at the bottom of the tower while the gas flows into an ammonia converter at the top. Further enrichment takes place in subsequent stages and reactor grade heavy water is produced through final distillation. The synthesis gas feed can be provided by an ammonia plant that, in turn, can be constructed in association with a heavy water ammonia-hydrogen exchange plant. The ammonia-hydrogen exchange process can also use ordinary water as a feed source of deuterium.
Many of the key equipment items for heavy water production plants using GS or the ammonia-hydrogen exchange processes are common to several segments of the chemical and petroleum industries. This is particularly so for small plants using the GS process. However, few of the items are available “off-the-shelf”. The GS and ammonia-hydrogen processes require the handling of large quantities of flammable, corrosive and toxic fluids at elevated pressures. Accordingly, in establishing the design and operating standards for plants and equipment using these processes, careful attention to the materials selection and specifications is required to ensure long service life with high safety and reliability factors. The choice of scale is primarily a function of economics and need. Thus, most of the equipment items would be prepared according to the requirements of the customer.
Finally, it should be noted that, in both the GS and the ammonia-hydrogen exchange processes, items of equipment which individually are not especially designed or prepared for heavy water production can be assembled into systems which are especially designed or prepared for producing heavy water. The catalyst production system used in the ammonia-hydrogen exchange process and water distillation systems used for the final concentration of heavy water to reactor-grade in either process are examples of such systems.
The items of equipment which are especially designed or prepared for the production of heavy water utilizing either the water-hydrogen sulphide exchange process or the ammonia-hydrogen exchange process include the following:
Exchange towers with diameters of 1.5 m or greater and capable of operating at pressures greater than or equal to 2 MPa (300 psi), especially designed or prepared for heavy water production utilizing the water-hydrogen sulphide exchange process.
Single stage, low head (i.e., 0.2 MPa or 30 psi) centrifugal blowers or compressors for hydrogen-sulphide gas circulation (i.e., gas containing more than 70 % H2S) especially designed or prepared for heavy water production utilizing the water-hydrogen sulphide exchange process. These blowers or compressors have a throughput capacity greater than or equal to 56 m3/second (120 000 SCFM) while operating at pressures greater than or equal to 1.8 MPa (260 psi) suction and have seals designed for wet H2S service.
Ammonia-hydrogen exchange towers greater than or equal to 35 m (114.3 ft) in height with diameters of 1.5 m (4.9 ft) to 2.5 m (8.2 ft) capable of operating at pressures greater than 15 MPa (2 225 psi) especially designed or prepared for heavy water production utilizing the ammonia-hydrogen exchange process. These towers also have at least one flanged, axial opening of the same diameter as the cylindrical part through which the tower internals can be inserted or withdrawn.
Tower internals and stage pumps especially designed or prepared for towers for heavy water production utilizing the ammonia-hydrogen exchange process. Tower internals include especially designed stage contactors which promote intimate gas/liquid contact. Stage pumps include especially designed submersible pumps for circulation of liquid ammonia within a contacting stage internal to the stage towers.
Ammonia crackers with operating pressures greater than or equal to 3 MPa (450 psi) especially designed or prepared for heavy water production utilizing the ammonia- hydrogen exchange process.
Infrared absorption analyzers capable of “on-line” hydrogen/deuterium ratio analysis where deuterium concentrations are equal to or greater than 90 %.
Catalytic burners for the conversion of enriched deuterium gas into heavy water especially designed or prepared for heavy water production utilizing the ammonia- hydrogen exchange process.
Complete heavy water upgrade systems, or columns therefor, especially designed or prepared for the upgrade of heavy water to reactor-grade deuterium concentration.
These systems, which usually employ water distillation to separate heavy water from light water, are especially designed or prepared to produce reactor-grade heavy water (i.e., typically 99.75 % deuterium oxide) from heavy water feedstock of lesser concentration.
Ammonia synthesis converters or synthesis units especially designed or prepared for heavy water production utilizing the ammonia-hydrogen exchange process.
These converters or units take synthesis gas (nitrogen and hydrogen) from an ammonia/hydrogen high-pressure exchange column (or columns), and the synthesized ammonia is returned to the exchange column (or columns).
The export of the whole set of major items within this boundary will take place only in accordance with the procedures of the Guidelines. All of the plants, systems, and especially designed or prepared equipment within this boundary can be used for the processing, production, or use of special fissionable material.
Uranium conversion plants and systems may perform one or more transformations from one uranium chemical species to another, including: conversion of uranium ore concentrates to UO3, conversion of UO3 to UO2, conversion of uranium oxides to UF4, UF6, or UCl4, conversion of UF4 to UF6, conversion of UF6 to UF4, conversion of UF4 to uranium metal, and conversion of uranium fluorides to UO2. Many of the key equipment items for uranium conversion plants are common to several segments of the chemical process industry. For example, the types of equipment employed in these processes may include: furnaces, rotary kilns, fluidized bed reactors, flame tower reactors, liquid centrifuges, distillation columns and liquid-liquid extraction columns. However, few of the items are available “off-the-shelf”; most would be prepared according to the requirements and specifications of the customer. In some instances, special design and construction considerations are required to address the corrosive properties of some of the chemicals handled (HF, F2, CIF3, and uranium fluorides) as well as nuclear criticality concerns. Finally, it should be noted that, in all of the uranium conversion processes, items of equipment which individually are not especially designed or prepared for uranium conversion can be assembled into systems which are especially designed or prepared for use in uranium conversion.
Conversion of uranium ore concentrates to UO3 can be performed by first dissolving the ore in nitric acid and extracting purified uranyl nitrate using a solvent such as tributyl phosphate. Next, the uranyl nitrate is converted to UO3 either by concentration and denitration or by neutralization with gaseous ammonia to produce ammonium diuranate with subsequent filtering, drying, and calcining.
Conversion of UO3 to UF6 can be performed directly by fluorination. The process requires a source of fluorine gas or chlorine trifluoride.
Conversion of UO3 to UO2 can be performed through reduction of UO3 with cracked ammonia gas or hydrogen.
Conversion of UO2 to UF4 can be performed by reacting UO2 with hydrogen fluoride gas (HF) at 300-500 °C.
Conversion of UF4 to UF6 is performed by exothermic reaction with fluorine in a tower reactor. UF6 is condensed from the hot effluent gases by passing the effluent stream through a cold trap cooled to – 10 °C. The process requires a source of fluorine gas.
Conversion of UF4 to U metal is performed by reduction with magnesium (large batches) or calcium (small batches). The reaction is carried out at temperatures above the melting point of uranium (1 130 °C).
Conversion of UF6 to UO2 can be performed by one of three processes. In the first, UF6 is reduced and hydrolyzed to UO2 using hydrogen and steam. In the second, UF6 is hydrolyzed by solution in water, ammonia is added to precipitate ammonium diuranate, and the diuranate is reduced to UO2 with hydrogen at 820 °C. In the third process, gaseous UF6, CO2, and NH3 are combined in water, precipitating ammonium uranyl carbonate. The ammonium uranyl carbonate is combined with steam and hydrogen at 500-600 °C to yield UO2.
UF6 to UO2 conversion is often performed as the first stage of a fuel fabrication plant.
Conversion of UF6 to UF4 is performed by reduction with hydrogen.
Conversion of UO2 to UCl4 can be performed by one of two processes. In the first, UO2 is reacted with carbon tetrachloride (CCl4 ) at approximately 400 °C. In the second, UO2 is reacted at approximately 700 °C in the presence of carbon black (CAS 1333-86-4), carbon monoxide, and chlorine to yield UCl4.
Plutonium conversion plants and systems perform one or more transformations from one plutonium chemical species to another, including: conversion of plutonium nitrate to PuO2, conversion of PuO2 to PuF4, and conversion of PuF4 to plutonium metal. Plutonium conversion plants are usually associated with reprocessing facilities, but may also be associated with plutonium fuel fabrication facilities. Many of the key equipment items for plutonium conversion plants are common to several segments of the chemical process industry. For example, the types of equipment employed in these processes may include: furnaces, rotary kilns, fluidized bed reactors, flame tower reactors, liquid centrifuges, distillation columns and liquid-liquid extraction columns. Hot cells, glove boxes and remote manipulators may also be required. However, few of the items are available “off-the-shelf”; most would be prepared according to the requirements and specifications of the customer. Particular care in designing for the special radiological, toxicity and criticality hazards associated with plutonium is essential. In some instances, special design and construction considerations are required to address the corrosive properties of some of the chemicals handled (e.g. HF). Finally, it should be noted that, for all plutonium conversion processes, items of equipment which individually are not especially designed or prepared for plutonium conversion can be assembled into systems which are especially designed or prepared for use in plutonium conversion.
The main functions involved in this process are: process feed storage and adjustment, precipitation and solid/liquor separation, calcination, product handling, ventilation, waste management, and process control. The process systems are particularly adapted so as to avoid criticality and radiation effects and to minimize toxicity hazards. In most reprocessing facilities, this process involves the conversion of plutonium nitrate to plutonium dioxide. Other processes can involve the precipitation of plutonium oxalate or plutonium peroxide.
This process usually involves the fluorination of plutonium dioxide, normally with highly corrosive hydrogen fluoride, to produce plutonium fluoride which is subsequently reduced using high purity calcium metal to produce metallic plutonium and a calcium fluoride slag. The main functions involved in this process are fluorination (e.g. involving equipment fabricated or lined with a precious metal), metal reduction (e.g. employing ceramic crucibles), slag recovery, product handling, ventilation, waste management and process control. The process systems are particularly adapted so as to avoid criticality and radiation effects and to minimize toxicity hazards. Other processes include the fluorination of plutonium oxalate or plutonium peroxide followed by a reduction to metal.
Use and Storage within an area to which access in controlled.
Transportation under special precautions including prior arrangements among sender, recipient and carrier, and prior agreement between entities subject to the jurisdiction and regulation of supplier and recipient States, respectively, in case of international transport, specifying time, place and procedures for transferring transport responsibility.
Use and Storage within a protected area to which access is controlled, i.e., an area under constant surveillance by guards or electronic devices, surrounded by a physical barrier with a limited number of points of entry under appropriate control, or any area with an equivalent level of physical protection.
Transportation under special precautions including prior arrangements among sender, recipient, and carrier, and prior agreement between entities subject to the jurisdiction and regulation of supplier and recipient States, respectively, in case of international transport, specifying time, place and procedures for transferring transport responsibility.
Materials in this category shall be protected with highly reliable systems against unauthorized use as follows:
Use and storage within a highly protected area, i.e., a protected area as defined for Category II above, to which, in addition, access is restricted to person whose trustworthiness has been determined, and which is under surveillance by guards who are in close communication with appropriate response forces. Specific measures taken in this context should have as their objective the detection and prevention of any assault, unauthorized access or unauthorized removal of material.
Transportation under special precautions as identified above for transportation of Category II and III materials and, in addition, under constant surveillance by escorts and under conditions which assure close communication with appropriate response forces.
Commonly used abbreviations (and their prefixes denoting size) in this Annex are as follows:
—
ampere(s)
—
becquerel(s)
—
degree(s) Celsius
—
chemical abstracts service
—
curie(s)
—
centimeter(s)
—
decibel(s)
—
decibel referred to 1 milliwatt
—
gram(s); also, acceleration of gravity (9.81 m/s2)
—
gigabecquerel(s)
—
gigahertz
—
gigapascal(s)
—
gray
—
hour(s)
—
hertz
—
joule(s)
—
kelvin
—
thousand electron volt(s)
—
kilogram(s)
—
kilohertz
—
kilonewton(s)
—
kilopascal(s)
—
kilovolt(s)
—
kilowatt(s)
—
meter(s)
—
milliampere(s)
—
million electron volt(s)
—
megahertz
—
milliliter(s)
—
millimeter(s)
—
megapascal(s)
—
millipascal(s)
—
megawatt(s)
—
microfarad(s)
—
micrometer(s)
—
microsecond(s)
—
newton(s)
—
nanometer(s)
—
nanosecond(s)
—
nanohenry(ies)
—
picosecond(s)
—
root mean square
—
revolutions per minute
—
second(s)
—
tesla(s)
—
total indicator reading
—
volt(s)
—
watt(s)
The following paragraphs are applied to the List of Nuclear-Related Dual-Use Equipment, Material, Software, and Related Technology.
The description of any item on the List includes that item in either new or second-hand condition.
When the description of any item on the List contains no qualifications or specifications, it is regarded as including all varieties of that item. Category captions are only for convenience in reference and do not affect the interpretation of item definitions.
The object of these controls should not be defeated by the transfer of any non-controlled item (including plants) containing one or more controlled components when the controlled component or components are the principal element of the item and can feasibly be removed or used for other purposes.
The object of these controls should not be defeated by the transfer of component parts. Each government will take such action as it can to achieve this aim and will continue to seek a workable definition for component parts, which could be used by all the suppliers.
The transfer of “technology” is controlled according to the Guidelines and as described in each section of the Annex. “Technology” directly associated with any item in the Annex will be subject to as great a degree of scrutiny and control as will the item itself, to the extent permitted by national legislation.
The approval of any Annex item for export also authorizes the export to the same end user of the minimum “technology” required for the installation, operation, maintenance, and repair of the item.
The transfer of “software” is controlled according to the Guidelines and as described in the Annex.
Generally available to the public by being:
Sold from stock at retail selling points without restriction; and
Designed for installation by the user without further substantial support by the supplier;
or
“In the public domain”.
—
Usually measured in terms of inaccuracy, defined as the maximum deviation, positive or negative, of an indicated value from an accepted standard or true value.
—
The maximum difference between angular position and the actual, very accurately measured angular position after the workpiece mount of the table has been turned out of its initial position.
—
Experimental or theoretical work undertaken principally to acquire new knowledge of the fundamental principles of phenomena and observable facts, not primarily directed toward a specific practical aim or objective.
—
Two or more “numerically controlled” motions operating in accordance with instructions that specify the next required position and the required feed rates to that position. These feed rates are varied in relation to each other so that a desired contour is generated. (Ref. ISO 2806-1980 as amended)
—
is related to all phases before “production” such as:
design
design research
design analysis
design concepts
assembly and testing of prototypes
pilot production schemes
design data
process of transforming design data into a product
configuration design
integration design
layouts
—
means continuous “monofilaments”, “yarns”, “rovings”, “tows” or “tapes”.
—
is the smallest increment of fiber, usually several μm in diameter.
—
is a bundle (typically 12-120) of approximately parallel “strands”.
—
is a bundle of “filaments” (typically over 200) arranged approximately parallel.
—
is a material constructed of interlaced or unidirectional “filaments”, “strands”, “rovings”, “tows” or “yarns”, etc., usually preimpregnated with resin.
—
is a bundle of “filaments”, usually approximately parallel.
—
is a bundle of twisted “strands”.
—
See “Fibrous or filamentary materials”.
—
“In the public domain”, as it applies herein, means “technology” or “software” that has been made available without restrictions upon its further dissemination. (Copyright restrictions do not remove “technology” or “software” from being “in the public domain”.)
—
(Usually measured in terms of non-linearity) is the maximum deviation of the actual characteristic (average of upscale and downscale readings), positive or negative, from a straight line so positioned as to equalize and minimize the maximum deviations.
—
The characteristic parameter which specifies in what range around the output value the correct value of the measurable variable lies with a confidence level of 95 %. It includes the uncorrected systematic deviations, the uncorrected backlash, and the random deviations.
—
A sequence of elementary instructions, maintained in a special storage, the execution of which is initiated by the introduction of its reference instruction into an instruction register.
—
See “Fibrous or filamentary materials”.
—
The automatic control of a process performed by a device that makes use of numeric data usually introduced as the operation is in progress. (Ref. ISO 2382)
—
of “numerically controlled” machine tools is to be determined and presented in accordance with Item 1.B.2., in conjunction with the requirements below:
Test conditions (ISO 230/2 (1988), paragraph 3):
For 12 hours before and during measurements, the machine tool and accuracy measuring equipment will be kept at the same ambient temperature. During the premeasurement time, the slides of the machine will be continuously cycled identically to the way they will be cycled during the accuracy measurements;
The machine shall be equipped with any mechanical, electronic, or software compensation to be exported with the machine;
Accuracy of measuring equipment for the measurements shall be at least four times more accurate than the expected machine tool accuracy;
Power supply for slide drives shall be as follows:
Line voltage variation shall not be greater than ± 10 % of nominal rated voltage;
Frequency variation shall not be greater than ± 2 Hz of normal frequency;
Lineouts or interrupted service are not permitted.
Test Program (paragraph 4):
Feed rate (velocity of slides) during measurement shall be the rapid traverse rate;
Measurements shall be made in an incremental manner from one limit of the axis travel to the other without returning to the starting position for each move to the target position;
Axes not being measured shall be retained at mid-travel during test of an axis.
Presentation of the test results (paragraph 2):
The results of the measurements must include:
“positioning accuracy” (A) and
The mean reversal error (B).
—
means all production phases such as:
construction
production engineering
manufacture
integration
assembly (mounting)
inspection
testing
quality assurance
—
A sequence of instructions to carry out a process in, or convertible into, a form executable by an electronic computer.
—
The least increment of a measuring device; on digital instruments, the least significant bit. (Ref. ANSI B-89.1.12)
—
See“Fibrous or filamentary materials”.
—
A collection of one or more “programs” or “microprograms” fixed in any tangible medium of expression.
—
See “Fibrous or filamentary materials”.
—
See “Fibrous or filamentary materials”.
—
“Technical assistance” may take forms such as: instruction, skills, training, working knowledge, consulting services.
—
“Technical data” may take forms such as blueprints, plans, diagrams, models, formulae, engineering designs and specifications, manuals and instructions written or recorded on other media or devices such as disk, tape, read-only memories.
—
means specific information required for the “development”, “production”, or “use” of any item contained in the List. This information may take the form of “technical data” or “technical assistance”.
—
See “Fibrous or filamentary materials”.
—
Operation, installation (including on-site installation), maintenance (checking), repair, overhaul, and refurbishing.
—
See “Fibrous or filamentary materials”.
A “cold area” greater than 0.09 m2;
A density greater than 3 g/cm3; and
A thickness of 100 mm or greater.
“Robots” or “end-effectors” having either of the following characteristics:
Specially designed to comply with national safety standards applicable to handling high explosives (for example, meeting electrical code ratings for high explosives); or
Specially designed or rated as radiation hardened to withstand a total radiation dose greater than 5 × 104 Gy (silicon) without operational degradation;
Control units specially designed for any of the “robots” or “end-effectors” specified in Item 1.A.3.a.
In Item 1.A.3. “robot” means a manipulation mechanism, which may be of the continuous path or of the point-to-point variety, may use “sensors”, and has all of the following characteristics:
is multifunctional;
is capable of positioning or orienting material, parts, tools, or special devices through variable movements in three-dimensional space;
incorporates three or more closed or open loop servo-devices which may include stepping motors; and
has “user-accessible programmability” by means of teach/playback method or by means of an electronic computer which may be a programmable logic controller, i.e., without mechanical intervention.
In the above definition “sensors” means detectors of a physical phenomenon, the output of which (after conversion into a signal that can be interpreted by a control unit) is able to generate “programs” or modify programmed instructions or numerical “program” data. This includes “sensors” with machine vision, infrared imaging, acoustical imaging, tactile feel, inertial position measuring, optical or acoustic ranging or force or torque measuring capabilities.
In the above definition “user-accessible programmability” means the facility allowing a user to insert, modify or replace “programs” by means other than:
a physical change in wiring or interconnections; or
the setting of function controls including entry of parameters.
The above definition does not include the following devices:
Manipulation mechanisms which are only manually/teleoperator controllable;
Fixed sequence manipulation mechanisms which are automated moving devices operating according to mechanically fixed programmed motions. The “program” is mechanically limited by fixed stops, such as pins or cams. The sequence of motions and the selection of paths or angles are not variable or changeable by mechanical, electronic, or electrical means;
Mechanically controlled variable sequence manipulation mechanisms which are automated moving devices operating according to mechanically fixed programmed motions. The “program” is mechanically limited by fixed, but adjustable, stops such as pins or cams. The sequence of motions and the selection of paths or angles are variable within the fixed “program” pattern. Variations or modifications of the “program” pattern (e.g., changes of pins or exchanges of cams) in one or more motion axes are accomplished only through mechanical operations;
Non-servo-controlled variable sequence manipulation mechanisms which are automated moving devices, operating according to mechanically fixed programmed motions. The “program” is variable but the sequence proceeds only by the binary signal from mechanically fixed electrical binary devices or adjustable stops;
Stacker cranes defined as Cartesian coordinate manipulator systems manufactured as an integral part of a vertical array of storage bins and designed to access the contents of those bins for storage or retrieval.
In Item 1.A.3. “end-effectors” are grippers, “active tooling units”, and any other tooling that is attached to the baseplate on the end of a “robot” manipulator arm.
In the above definition “active tooling units” is a device for applying motive power, process energy or sensing to the workpiece.
A capability of penetrating 0.6 m or more of hot cell wall (through-the-wall operation); or
A capability of bridging over the top of a hot cell wall with a thickness of 0.6 m or more (over-the-wall operation).
Machines having both of the following characteristics:
Three or more rollers (active or guiding); and
Which, according to the manufacturer's technical specification, can be equipped with “numerical control” units or a computer control;
Rotor-forming mandrels designed to form cylindrical rotors of inside diameter between 75 and 400 mm.
Machine tools for turning, that have “positioning accuracies” with all compensations available better (less) than 6 μm according to ISO 230/2 (1988) along any linear axis (overall positioning) for machines capable of machining diameters greater than 35 mm;
Machine tools for milling, having any of the following characteristics:
“Positioning accuracies” with all compensations available better (less) than 6 μm according to ISO 230/2 (1988) along any linear axis (overall positioning);
Two or more contouring rotary axes; or
Five or more axes which can be coordinated simultaneously for “contouring control”.
X-axis travel greater than 2 m; and
Overall “positioning accuracy” on the x-axis worse (more) than 30 μm according to ISO 230/2 (1988).
Machine tools for grinding, having any of the following characteristics:
“Positioning accuracies” with all compensations available better (less) than 4 μm according to ISO 230/2 (1988) along any linear axis (overall positioning);
Two or more contouring rotary axes; or
Five or more axes which can be coordinated simultaneously for “contouring control”.
Cylindrical external, internal, and external-internal grinding machines having all the following characteristics:
Limited to a maximum workpiece capacity of 150 mm outside diameter or length; and
Axes limited to x, z and c.
Jig grinders that do not have a z-axis or a w-axis with an overall positioning accuracy less (better) than 4 microns. Positioning accuracy is according to ISO 230/2 (1988).
Non-wire type Electrical Discharge Machines (EDM) that have two or more contouring rotary axes and that can be coordinated simultaneously for “contouring control”.
Stated “positioning accuracy” are to be derived as follows:
Select five machines of a model to be evaluated;
Measure the linear axis accuracies according to ISO 230/2 (1988);
Determine the accuracy values (A) for each axis of each machine. The method of calculating the accuracy value is described in the ISO 230/2 (1988) standard;
Determine the average accuracy value of each axis. This average value becomes the stated “positioning accuracy” of each axis for the model (Âx, Ây…);
Since Item 1.B.2. refers to each linear axis, there will be as many stated “positioning accuracy” values as there are linear axes;
If any axis of a machine tool not controlled by Items 1.B.2.a., 1.B.2.b., or 1.B.2.c. has a stated “positioning accuracy” of 6 μm or better (less) for grinding machines, and 8 μm or better (less) for milling and turning machines, both according to ISO 230/2 (1988), then the builder should be required to reaffirm the accuracy level once every eighteen months.
Gears
Crankshafts or cam shafts
Tools or cutters
Extruder worms
Wheel-dressing systems in grinding machines;
Parallel rotary axes designed for mounting of separate workpieces;
Co-linear rotary axes designed for manipulating the same workpiece by holding it in a chuck from different ends.
Computer controlled or numerically controlled coordinate measuring machines (CMM) having either of the following characteristics:
Having only two axes and having a maximum permissible error of length measurement along any axis (one dimensional), identified as any combination of E0x MPE, E0y MPE or E0z MPE, equal to or less(better) than (1.25 + L/1 000) μm (where L is the measured length in mm) at any point within the operating range of the machine (i.e., within the length of the axis), according to ISO 10360-2(2009); or
Three or more axes and having a three dimensional (volumetric) maximum permissible error of length measurement (E0, MPE equal to or less (better) than (1.7 + L/800) μm (where L is the measured length in mm) at any point within the operating range of the machine (i.e., within the length of the axis), according to ISO 10360-2(2009).
Linear displacement measuring instruments, as follows:
Non-contact type measuring systems with a “resolution” equal to or better (less) than 0.2 μm within a measuring range up to 0.2 mm;
Linear variable differential transformer (LVDT) systems having both of the following characteristics:
“Linearity” equal to or less (better) than 0.1 % measured from 0 to the full operating range, for LVDTs with an operating range up to 5 mm; or
“Linearity” equal to or less (better) than 0.1 % measured from 0 to 5 mm for LVDTs with an operating range greater than 5 mm; and
Drift equal to or better (less) than 0.1 % per day at a standard ambient test room temperature ± 1 K;
Measuring systems having both of the following characteristics:
Contain a laser; and
Maintain for at least 12 hours, over a temperature range of ± 1 K around a standard temperature and a standard pressure:
A “resolution” over their full scale of 0.1 μm or better; and
With a “measurement uncertainty” equal to or better (less) than (0.2 + L/2 000) μm (L is the measured length in millimeters);
Angular displacement measuring instruments having an “angular position deviation” equal to or better (less) than 0.00025°;
Systems for simultaneous linear-angular inspection of hemishells, having both of the following characteristics:
“Measurement uncertainty” along any linear axis equal to or better (less) than 3.5 μm per 5 mm; and
“Angular position deviation” equal to or less than 0.02°.
Furnaces having all of the following characteristics:
Capable of operation at temperatures above 1 123 K (850 °C);
Induction coils 600 mm or less in diameter; and
Designed for power inputs of 5 kW or more;
Power supplies, with a specified output power of 5 kW or more, specially designed for furnaces specified in Item 1.B.4.a.
“Isostatic presses” having both of the following characteristics:
Capable of achieving a maximum working pressure of 69 MPa or greater; and
A chamber cavity with an inside diameter in excess of 152 mm;
Dies, molds, and controls specially designed for the “isostatic presses” specified in Item 1.B.5.a.
Electrodynamic vibration test systems, having all of the following characteristics:
Employing feedback or closed loop control techniques and incorporating a digital control unit;
Capable of vibrating at 10 g RMS or more between 20 and 2 000 Hz; and
Capable of imparting forces of 50 kN or greater measured “bare table”;
Digital control units, combined with “software” specially designed for vibration testing, with a real-time bandwidth greater than 5 kHz and being designed for a system specified in Item 1.B.6.a.;
Vibration thrusters (shaker units), with or without associated amplifiers, capable of imparting a force of 50 kN or greater measured “bare table”, which are usable for the systems specified in Item 1.B.6.a.;
Test piece support structures and electronic units designed to combine multiple shaker units into a complete shaker system capable of providing an effective combined force of 50 kN or greater, measured “bare table”, which are usable for the systems specified in Item 1.B.6.a.
Arc remelt and casting furnaces having both of the following characteristics:
Consumable electrode capacities between 1 000 and 20 000 cm3; and
Capable of operating with melting temperatures above 1 973 K (1 700 °C);
Electron beam melting furnaces and plasma atomization and melting furnaces, having both of the following characteristics:
A power of 50 kW or greater; and
Capable of operating with melting temperatures above 1 473 K (1 200 °C);
Computer control and monitoring systems specially configured for any of the furnaces specified in Item 1.B.7.a. or 1.B.7.b.
None.
Crucibles having both of the following characteristics:
A volume of between 150 cm3 (150 ml) and 8 000 cm3 (8 l (litres)); and
Made of or coated with any of the following materials, or combination of the following materials, having an overall impurity level of 2 % or less by weight:
Calcium fluoride (CaF2);
Calcium zirconate (metazirconate) (CaZrO3);
Cerium sulfide (Ce2S3);
Erbium oxide (erbia) (Er2O3);
Hafnium oxide (hafnia) (HfO2);
Magnesium oxide (MgO);
Nitrided niobium-titanium-tungsten alloy (approximately 50 % Nb, 30 % Ti, 20 % W);
Yttrium oxide (yttria) (Y2O3); or
Zirconium oxide (zirconia) (ZrO2);
Crucibles having both of the following characteristics:
A volume of between 50 cm3 (50 ml) and 2 000 cm3 (2 liters); and
Made of or lined with tantalum, having a purity of 99.9 % or greater by weight;
Crucibles having all of the following characteristics:
A volume of between 50 cm3 (50 ml) and 2 000 cm3 (2 liters);
Made of or lined with tantalum, having a purity of 98 % or greater by weight; and
Coated with tantalum carbide, nitride, boride, or any combination thereof.
An inside diameter of between 75 and 400 mm; and
Made with any of the “fibrous or filamentary materials” specified in Item 2.C.7.a. or carbon prepreg materials specified in Item 2.C.7.c.
Facilities or plants for the production, recovery, extraction, concentration or handling of tritium;
Equipment for tritium facilities or plants, as follows:
Hydrogen or helium refrigeration units capable of cooling to 23 K (– 250 °C) or less, with heat removal capacity greater than 150 W;
Hydrogen isotope storage or purification systems using metal hydrides as the storage or purification medium.
Facilities or plants for the separation of lithium isotopes;
Equipment for the separation of lithium isotopes based on the lithium-mercury amalgam process, as follows:
Packed liquid-liquid exchange columns specially designed for lithium amalgams;
Mercury or lithium amalgam pumps;
Lithium amalgam electrolysis cells;
Evaporators for concentrated lithium hydroxide solution;
Ion exchange systems specially designed for lithium isotope separation, and specially designed component parts therefor;
Chemical exchange systems (employing crown ethers, cryptands, or lariat ethers) specially designed for lithium isotope separation, and specially designed component parts therefor.
“Capable of” an ultimate tensile strength of 460 MPa or more at 293 K (20 °C); and
In the form of tubes or cylindrical solid forms (including forgings) with an outside diameter of more than 75 mm.
Metal windows for X-ray machines or for bore-hole logging devices;
Oxide shapes in fabricated or semi-fabricated forms specially designed for electronic component parts or as substrates for electronic circuits;
Beryl (silicate of beryllium and aluminium) in the form of emeralds or aquamarines.
A purity of 99.99 % or greater by weight; and
Containing less than 10 ppm (parts per million) by weight of silver.
Containing less than 1 000 parts per million by weight of metallic impurities other than magnesium; and
Containing less than 10 parts per million by weight of boron.
Carbon or aramid “fibrous or filamentary materials” having either of the following characteristics:
A “specific modulus” of 12.7 × 106 m or greater; or
A “specific tensile strength” of 23.5 × 104 m or greater;
Glass “fibrous or filamentary materials” having both of the following characteristics:
A “specific modulus” of 3.18 × 106 m or greater; and
A “specific tensile strength” of 7.62 × 104 m or greater;
Containing less than 200 parts per million by weight of metallic impurities other than calcium; and
Containing less than 10 parts per million by weight of boron.
Medical applicators;
A product or device containing less than 0.37 GBq of radium-226.
“Capable of” an ultimate tensile strength of 900 MPa or more at 293 K (20 °C); and
In the form of tubes or cylindrical solid forms (including forgings) with an outside diameter of more than 75 mm.
In forms with a hollow cylindrical symmetry (including cylinder segments) with an inside diameter between 100 and 300 mm; and
A mass greater than 20 kg.
Nickel powder having both of the following characteristics:
A nickel purity content of 99.0 % or greater by weight; and
A mean particle size of less than 10 μm measured by the ASTM B 330 standard;
Porous nickel metal produced from materials specified in Item 2.C.16.a.
Filamentary nickel powders;
Single porous nickel metal sheets with an area of 1 000 cm2 per sheet or less.
Actinium 225 | Curium 244 | Polonium 209 |
Actinium 227 | Einsteinium 253 | Polonium 210 |
Californium 253 | Einsteinium 254 | Radium 223 |
Curium 240 | Gadolinium 148 | Thorium 227 |
Curium 241 | Plutonium 236 | Thorium 228 |
Curium 242 | Plutonium 238 | Uranium 230 |
Curium 243 | Polonium 208 | Uranium 232 |
In the following forms:
Elemental;
Compounds having a total activity of 37 GBq per kg or greater;
Mixtures having a total activity of 37 GBq per kg or greater;
Products or devices containing any of the foregoing.
In forms with a hollow cylindrical symmetry (including cylinder segments) with an inside diameter between 100 and 300 mm; and
A mass greater than 20kg.
None
Multiphase output providing a power of 40 VA or greater;
Operating at a frequency of 600 Hz or more; and
Frequency control better (less) than 0.2 %.
Copper vapor lasers having both of the following characteristics:
Operating at wavelengths between 500 and 600 nm; and
An average output power equal to or greater than 30 W;
Argon ion lasers having both of the following characteristics:
Operating at wavelengths between 400 and 515 nm; and
An average output power greater than 40 W;
Neodymium-doped (other than glass) lasers with an output wavelength between 1 000 and 1 100 nm having either of the following:
Pulse-excited and Q-switched with a pulse duration equal to or greater than 1 ns, and having either of the following:
A single-transverse mode output with an average output power greater than 40 W; or
A multiple-transverse mode output with an average output power greater than 50 W;
or
Incorporating frequency doubling to give an output wavelength between 500 and 550 nm with an average output power of greater than 40 W;
Tunable pulsed single-mode dye laser oscillators having all of the following characteristics:
Operating at wavelengths between 300 and 800 nm;
An average output power greater than 1 W;
A repetition rate greater than 1 kHz; and
Pulse width less than 100 ns;
Tunable pulsed dye laser amplifiers and oscillators having all of the following characteristics:
Operating at wavelengths between 300 and 800 nm;
An average output power greater than 30 W;
A repetition rate greater than 1 kHz; and
Pulse width less than 100 ns;
Alexandrite lasers having all of the following characteristics:
Operating at wavelengths between 720 and 800 nm;
A bandwidth of 0.005 nm or less;
A repetition rate greater than 125 Hz; and
An average output power greater than 30 W;
Pulsed carbon dioxide lasers having all of the following characteristics:
Operating at wavelengths between 9 000 and 11 000 nm;
A repetition rate greater than 250 Hz;
An average output power greater than 500 W; and
Pulse width of less than 200 ns;
Pulsed excimer lasers (XeF, XeCl, KrF) having all of the following characteristics:
Operating at wavelengths between 240 and 360 nm;
A repetition rate greater than 250 Hz; and
An average output power greater than 500 W;
Para-hydrogen Raman shifters designed to operate at 16 μm output wavelength and at a repetition rate greater than 250 Hz.
Pulsed carbon monoxide lasers having all of the following characteristics:
Operating at wavelengths between 5 000 and 6 000 nm;
A repetition rate greater than 250 Hz;
An average output power greater than 200 W; and
Pulse width of less than 200 ns.
A nominal size of 5 mm or greater;
Having a bellows seal; and
Wholly made of or lined with aluminium, aluminium alloy, nickel, or nickel alloy containing more than 60 % nickel by weight.
Capable of creating magnetic fields greater than 2 T;
A ratio of length to inner diameter greater than 2;
Inner diameter greater than 300 mm; and
Magnetic field uniform to better than 1 % over the central 50 % of the inner volume.
Capable of continuously producing, over a time period of 8 hours, 100 V or greater with current output of 500 A or greater; and
Current or voltage stability better than 0.1 % over a time period of 8 hours.
Capable of continuously producing, over a time period of 8 hours, 20 kV or greater with current output of 1 A or greater; and
Current or voltage stability better than 0.1 % over a time period of 8 hours.
Pressure sensing elements made of or protected by aluminium, aluminium alloy, aluminium oxide (alumina or sapphire), nickel, nickel alloy with more than 60 % nickel by weight, or fully fluorinated hydrocarbon polymers;
Seals, if any, essential for sealing the pressure sensing element, and in direct contact with the process medium, made of or protected by aluminium, aluminium alloy, aluminium oxide (alumina or sapphire), nickel, nickel alloy with more than 60 % nickel by weight, or fully fluorinated hydrocarbon polymers; and
Having either of the following characteristics:
A full scale of less than 13 kPa and an “accuracy” of better than ± 1 % of full scale; or
A full scale of 13 kPa or greater and an “accuracy” of better than ± 130 Pa when measuring at 13 kPa.
Input throat size equal to or greater than 380 mm;
Pumping speed equal to or greater than 15 m3/s; and
Capable of producing an ultimate vacuum better than 13.3 mPa.
Capable of an inlet volume flow rate of 50 m3/h or greater;
Capable of a pressure ratio of 2:1 or greater; and
Having all surfaces that come in contact with the process gas made from any of the following materials:
Aluminium or aluminium alloy;
Aluminium oxide;
Stainless steel;
Nickel or nickel alloy;
Phosphor bronze; or
Fluoropolymers.
Polytetrafluoroethylene (PTFE),
Fluorinated Ethylene Propylene (FEP),
Perfluoroalkoxy (PFA),
Polychlorotrifluoroethylene (PCTFE); and
Vinylidene fluoride-hexafluoropropylene copolymer.
Rotor assembly equipment for assembly of gas centrifuge rotor tube sections, baffles, and end caps;
Rotor straightening equipment for alignment of gas centrifuge rotor tube sections to a common axis;
Bellows-forming mandrels and dies for producing single-convolution bellows.
Inside diameter between 75 and 400 mm;
Length equal to or greater than 12.7 mm;
Single convolution depth greater than 2 mm; and
Made of high-strength aluminium alloys, maraging steel, or high strength “fibrous or filamentary materials”.
Centrifugal balancing machines designed for balancing flexible rotors having a length of 600 mm or more and having all of the following characteristics:
Swing or journal diameter greater than 75 mm;
Mass capability of from 0.9 to 23 kg; and
Capable of balancing speed of revolution greater than 5 000 rpm;
Centrifugal balancing machines designed for balancing hollow cylindrical rotor components and having all of the following characteristics:
Journal diameter greater than 75 mm;
Mass capability of from 0.9 to 23 kg;
Capable of balancing to a residual imbalance equal to or less than 0.010 kg × mm/kg per plane; and
Belt drive type.
Filament winding machines having all of the following characteristics:
Having motions for positioning, wrapping, and winding fibers coordinated and programmed in two or more axes;
Specially designed to fabricate composite structures or laminates from “fibrous or filamentary materials”; and
Capable of winding cylindrical tubes with an internal diameter between 75 and 650 mm and lengths of 300 mm or greater;
Coordinating and programming controls for the filament winding machines specified in Item 3.B.4.a.;
Precision mandrels for the filament winding machines specified in Item 3.B.4.a.
Inductively coupled plasma mass spectrometers (ICP/MS);
Glow discharge mass spectrometers (GDMS);
Thermal ionization mass spectrometers (TIMS);
Electron bombardment mass spectrometers having both of the following features:
A molecular beam inlet system that injects a collimated beam of analyte molecules into a region of the ion source where the molecules are ionized by an electron beam; and
One or more cold traps that can be cooled to a temperature of 193 K (– 80 °C) or less in order to trap analyte molecules that are not ionized by the electron beam;
Mass spectrometers equipped with a microfluorination ion source designed for actinides or actinide fluorides.
None.
Made of phosphor bronze mesh chemically treated to improve wettability; and
Designed to be used in vacuum distillation towers.
Airtight (i.e., hermetically sealed);
A capacity greater than 8.5 m3/h; and
Either of the following characteristics:
For concentrated potassium amide solutions (1 % or greater), an operating pressure of 1.5 to 60 MPa; or
For dilute potassium amide solutions (less than 1 %), an operating pressure of 20 to 60 MPa.
Designed for operation with an outlet temperature of 35 K (– 238 °C) or less; and
Designed for a throughput of hydrogen gas of 1 000 kg/h or greater.
Water-hydrogen sulfide exchange tray columns, having all of the following characteristics:
Can operate at pressures of 2 MPa or greater;
Constructed of carbon steel having an austenitic ASTM (or equivalent standard) grain size number of 5 or greater; and
With a diameter of 1.8 m or greater;
Internal contactors for the water-hydrogen sulfide exchange tray columns specified in Item 4.B.1.a.
Designed for operation at internal temperatures of 35 K (– 238 °C) or less;
Designed for operation at internal pressures of 0.5 to 5 MPa;
Constructed of either:
Stainless steel of the 300 series with low sulfur content and with an austenitic ASTM (or equivalent standard) grain size number of 5 or greater; or
Equivalent materials which are both cryogenic and H2-compatible; and
None.
None.
Photocathode area of greater than 20 cm2; and
Anode pulse rise time of less than 1 ns.
An accelerator peak electron energy of 500 keV or greater but less than 25 MeV; and
With a figure of merit (K) of 0.25 or greater; or
An accelerator peak electron energy of 25 MeV or greater; and
A peak power greater than 50 MW.
Streak cameras, and specially designed components therefor, as follows:
Streak cameras with writing speeds greater than 0.5 mm/μs;
Electronic streak cameras capable of 50 ns or less time resolution;
Streak tubes for cameras specified in 5.B.3.a.2.;
Plug-ins specially designed for use with streak cameras which have modular structures and that enable the performance specifications in 5.B.3.a.1 or 5.B.3.a.2.;
Synchronizing electronics units, rotor assemblies consisting of turbines, mirrors and bearings specially designed for cameras specified in 5.B.3.a.1.
Framing cameras and specially designed components therefor as follows:
Framing cameras with recording rates greater than 225 000 frames per second;
Framing cameras capable of 50 ns or less frame exposure time;
Framing tubes and solid-state imaging devices having a fast image gating (shutter) time of 50 ns or less specially designed for cameras specified in 5.B.3.b.1 or 5.B.3.b.2.;
Plug-ins specially designed for use with framing cameras which have modular structures and that enable the performance specifications in 5.B.3.b.1 or 5.B.3.b.2.;
Synchronizing electronics units, rotor assemblies consisting of turbines, mirrors and bearings specially designed for cameras specified in 5.B.3.b.1 or 5.B.3.b.2.
Solid state or electron tube cameras and specially designed components therefor as follows:
Solid-state cameras or electron tube cameras with a fast image gating (shutter) time of 50 ns or less;
Solid-state imaging devices and image intensifiers tubes having a fast image gating (shutter) time of 50 ns or less specially designed for cameras specified in 5.B.3.c.1.;
Electro-optical shuttering devices (Kerr or Pockels cells) with a fast image gating (shutter) time of 50 ns or less;
Plug-ins specially designed for use with cameras which have modular structures and that enable the performance specifications in 5.B.3.c.1.
Velocity interferometers for measuring velocities exceeding 1 km/s during time intervals of less than 10 μs;
Shock pressure gauges capable of measuring pressures greater than 10 GPa, including gauges made with manganin, ytterbium, and polyvinylidene bifluoride (PVBF, PVF2);
Quartz pressure transducers for pressures greater than 10 GPa.
Output voltage greater than 6 V into a resistive load of less than 55 ohms; and
“Pulse transition time” less than 500 ps.
Designed to fully contain an explosion equivalent to 2 kg of TNT or greater; and
Having design elements or features enabling real time or delayed transfer of diagnostic or measurement information.
None.
Electrically driven explosive detonators, as follows:
Exploding bridge (EB);
Exploding bridge wire (EBW);
Slapper;
Exploding foil initiators (EFI);
Arrangements using single or multiple detonators designed to nearly simultaneously initiate an explosive surface over an area greater than 5 000 mm2 from a single firing signal with an initiation timing spread over the surface of less than 2.5 μs.
Detonator firing sets (initiation systems, firesets), including electronically-charged, explosively-driven and optically-driven firing sets designed to drive multiple controlled detonators specified by Item 6.A.1. above;
Modular electrical pulse generators (pulsers) having all of the following characteristics:
Designed for portable, mobile, or ruggedized-use;
Capable of delivering their energy in less than 15 μs into loads of less than 40 ohms;
Having an output greater than 100 A;
No dimension greater than 30 cm;
Weight less than 30 kg; and
Specified to operate over an extended temperature range of 223 to 373 K (– 50 °C to 100 °C) or specified as suitable for aerospace applications.
Micro-firing units having all of the following characteristics:
No dimension greater than 35 mm;
Voltage rating of equal to or greater than 1 kV; and
Capacitance of equal to or greater than 100 nF.
Cold-cathode tubes, whether gas filled or not, operating similarly to a spark gap, having all of the following characteristics:
Containing three or more electrodes;
Anode peak voltage rating of 2.5 kV or more;
Anode peak current rating of 100 A or more; and
Anode delay time of 10 μs or less;
Triggered spark-gaps having both of the following characteristics:
Anode delay time of 15 μs or less; and
Rated for a peak current of 500 A or more;
Modules or assemblies with a fast switching function having all of the following characteristics:
Anode peak voltage rating greater than 2 kV;
Anode peak current rating of 500 A or more; and
Turn-on time of 1 μs or less.
Voltage rating greater than 1.4 kV;
Energy storage greater than 10 J;
Capacitance greater than 0.5 μF; and
Series inductance less than 50 nH; or
Voltage rating greater than 750 V;
Capacitance greater than 0.25 μF; and
Series inductance less than 10 nH.
Designed for operation without an external vacuum system; and
Utilizing electrostatic acceleration to induce a tritium-deuterium nuclear reaction; or
Utilizing electrostatic acceleration to induce a deuterium-deuterium nuclear reaction and capable of an output of 3 × 109 neutrons/s or greater.
Voltage rating greater than 2 kV; and
Inductance of less than 20 nH.
None.
Cyclotetramethylenetetranitramine (HMX ) (CAS 2691-41-0);
Cyclotrimethylenetrinitramine (RDX) (CAS 121-82-4);
Triaminotrinitrobenzene (TATB) (CAS 3058-38-6);
Aminodinitrobenzo-furoxan or 7-amino-4,6 nitrobenzofurazane-1-oxide (ADNBF) (CAS 97096-78-1);
1,1-diamino-2,2-dinitroethylene (DADE or FOX7) (CAS 145250-81-3);
2,4-dinitroimidazole (DNI) (CAS 5213-49-0);
Diaminoazoxyfurazan (DAAOF or DAAF) (CAS 78644-89-0);
Diaminotrinitrobenzene (DATB) (CAS 1630-08-6);
Dinitroglycoluril (DNGU or DINGU) (CAS 55510-04-8);
2,6-Bis (picrylamino)-3,5-dinitropyridine (PYX) (CAS 38082-89-2);
3,3′-diamino-2,2′,4,4′,6,6′-hexanitrobiphenyl or dipicramide (DIPAM) (CAS 17215-44-0);
Diaminoazofurazan (DAAzF) (CAS 78644-90-3);
1,4,5,8-tetranitro-pyridazino[4,5-d] pyridazine (TNP) (CAS 229176-04-9);
Hexanitrostilbene (HNS) (CAS 20062-22-0); or
Any explosive with a crystal density greater than 1.8 g/cm3 and having a detonation velocity greater than 8 000 m/s.
None.
(To be read in conjunction with section II.B.)
This Annex comprises the following items listed in the Missile Technology Control Regime, as defined therein. The introductory remarks (section 1) should be read as a tool to interpret the exact specifications of the items listed; they do not call into question the prohibition on the export of these items to Iran as provided by Article 4.
The transfer of “technology” directly associated with any goods controlled in the Annex is controlled according to the provisions in each Item to the extent permitted by national legislation. The approval of any Annex item for export also authorizes the export to the same end-user of the minimum “technology” required for the installation, operation, maintenance, or repair of the item.
Controls do not apply to “technology”“in the public domain” or to “basic scientific research”.
The Annex does not control “software” which is either:
Generally available to the public by being:
Sold from stock at retail selling points without restriction, by means of:
Over-the-counter transactions;
Mail order transactions; or
Electronic transactions; or
Telephone call transactions; and
Designed for installation by the user without further substantial support by the supplier; or
“In the public domain”.
The General Software Note only applies to general purpose, mass market “software”.
In some instances chemicals are listed by name and CAS number.
Chemicals of the same structural formula (including hydrates) are controlled regardless of name or CAS number. CAS numbers are shown to assist in identifying whether a particular chemical or mixture is controlled, irrespective of nomenclature. CAS numbers cannot be used as unique identifiers because some forms of the listed chemical have different CAS numbers, and mixtures containing a listed chemical may also have different CAS numbers.
For the purpose of this Annex, the following definitions apply:
Usually measured in terms of inaccuracy, means the maximum deviation, positive or negative, of an indicated value from an accepted standard or true value.
Experimental or theoretical work undertaken principally to acquire new knowledge of the fundamental principles of phenomena or observable facts, not primarily directed towards a specific practical aim or objective.
Is related to all phases prior to “production” such as:
design
design research
design analysis
design concepts
assembly and testing of prototypes
pilot production schemes
design data
process of transforming design data into a product
configuration design
integration design
layouts
This means “software” or “technology” which has been made available without restrictions upon its further dissemination. (Copyright restrictions do not remove “software” or “technology” from being “in the public domain”.)
A device in which a number of passive and/or active elements are considered as indivisibly associated on or within a continuous structure to perform the function of a circuit.
A sequence of elementary instructions maintained in a special storage, the execution of which is initiated by the introduction of its reference instruction register.
The total mass that can be carried or delivered by the specified rocket system or unmanned aerial vehicle (UAV) system that is not used to maintain flight.
The particular equipment, subsystems, or components to be included in the “payload” depends on the type and configuration of the vehicle under consideration.
“Payload” for systems with separating re-entry vehicles (RVs) includes:
The RVs, including:
Dedicated guidance, navigation, and control equipment;
Dedicated countermeasures equipment;
Munitions of any type (e.g. explosive or non-explosive);
Supporting structures and deployment mechanisms for the munitions (e.g. hardware used to attach to, or separate the RV from, the bus/post- boost vehicle) that can be removed without violating the structural integrity of the vehicle;
Mechanisms and devices for safing, arming, fuzing or firing;
Any other countermeasures equipment (e.g. decoys, jammers or chaff dispensers) that separate from the RV bus/post-boost vehicle;
The bus/post-boost vehicle or attitude control/velocity trim module not including systems/subsystems essential to the operation of the other stages.
“Payload” for systems with non-separating re-entry vehicles includes:
Munitions of any type (e.g. explosive or non-explosive);
Supporting structures and deployment mechanisms for the munitions that can be removed without violating the structural integrity of the vehicle;
Mechanisms and devices for safing, arming, fuzing or firing;
Any countermeasures equipment (e.g. decoys, jammers or chaff dispensers) that can be removed without violating the structural integrity of the vehicle.
“Payload” includes:
Spacecraft (single or multiple), including satellites;
Spacecraft-to-launch vehicle adapters including, if applicable, apogee/perigee kick motors or similar manoeuvering systems and separation systems.
“Payload” includes:
Equipment required for a mission, such as data gathering, recording or transmitting devices for mission-specific data;
Recovery equipment (e.g. parachutes) that can be removed without violating the structural integrity of the vehicle.
“Payload” includes:
Munitions of any type (e.g. explosive or non-explosive);
Supporting structures and deployment mechanisms for the munitions that can be removed without violating the structural integrity of the vehicle;
Mechanisms and devices for safing, arming, fuzing or firing;
Countermeasures equipment (e.g. decoys, jammers or chaff dispensers) that can be removed without violating the structural integrity of the vehicle;
Signature alteration equipment that can be removed without violating the structural integrity of the vehicle.
“Payload” includes:
Munitions of any type (e.g. explosive or non-explosive);
Mechanisms and devices for safing, arming, fuzing or firing;
Countermeasures equipment (e.g. decoys, jammers or chaff dispensers) that can be removed without violating the structural integrity of the vehicle;
Signature alteration equipment that can be removed without violating the structural integrity of the vehicle;
Equipment required for a mission such as data gathering, recording or transmitting devices for mission-specific data and supporting structures that can be removed without violating the structural integrity of the vehicle;
Recovery equipment (e.g. parachutes) that can be removed without violating the structural integrity of the vehicle.
Munitions supporting structures and deployment mechanisms that can be removed without violating the structural integrity of the vehicle.
Means all production phases such as:
production engineering
manufacture
integration
assembly (mounting)
inspection
testing
quality assurance
Means tooling, templates, jigs, mandrels, moulds, dies, fixtures, alignment mechanisms, test equipment, other machinery and components therefor, limited to those specially designed or modified for “development” or for one or more phases of “production”.
Means “production equipment” and specially designed “software” therefor integrated into installations for “development” or for one or more phases of “production”.
A sequence of instructions to carry out a process in, or convertible into, a form executable by an electronic computer.
Means that the component or equipment is designed or rated to withstand radiation levels which meet or exceed a total irradiation dose of 5 × 105 rads (Si).
The maximum distance that the specified rocket system or unmanned aerial vehicle (UAV) system is capable of travelling in the mode of stable flight as measured by the projection of its trajectory over the surface of the Earth.
A collection of one or more “programmes”, or “micro-programmes”, fixed in any tangible medium of expression.
Means specific information which is required for the “development”, “production” or “use” of a product. The information may take the form of “technical data” or “technical assistance”.
May take forms such as:
instruction
skills
training
working knowledge
consulting services
May take forms such as:
blueprints
plans
diagrams
models
formulae
engineering designs and specifications
manuals and instructions written or recorded on other media or devices such as:
disk
tape
read-only memories
Means:
operation
installation (including on-site installation)
maintenance
repair
overhaul
refurbishing
Where the following terms appear in the text, they are to be understood according to the explanations below:
“Specially designed” describes equipment, parts, components, materials or “software” which, as a result of “development”, have unique properties that distinguish them for certain predetermined purposes. For example, a piece of equipment that is “specially designed” for use in a missile will only be considered so if it has no other function or use. Similarly, a piece of manufacturing equipment that is “specially designed” to produce a certain type of component will only be considered such if it is not capable of producing other types of components.
“Designed or modified” describes equipment, parts or components which, as a result of “development,” or modification, have specified properties that make them fit for a particular application. “Designed or modified” equipment, parts, components or “software” can be used for other applications. For example, a titanium coated pump designed for a missile may be used with corrosive fluids other than propellants.
“Usable in”, “usable for”, “usable as” or “capable of” describes equipment, parts, components, materials or “software” which are suitable for a particular purpose. There is no need for the equipment, parts, components or “software” to have been configured, modified or specified for the particular purpose. For example, any military specification memory circuit would be “capable of” operation in a guidance system.
“Modified” in the context of “software” describes “software” which has been intentionally changed such that it has properties that make it fit for specified purposes or applications. Its properties may also make it suitable for purposes or applications other than those for which it was “modified”.
None.
Individual rocket stages usable in the systems specified in 1.A.;
Re-entry vehicles, and equipment designed or modified therefor, usable in the systems specified in 1.A., as follows, except as provided in the Note below 2.A.1. for those designed for non-weapon payloads:
Heat shields, and components therefor, fabricated of ceramic or ablative materials;
Heat sinks and components therefor, fabricated of light-weight, high heat capacity materials;
Electronic equipment specially designed for re-entry vehicles;
Rocket propulsion subsystems, usable in the systems specified in 1.A., as follows;
Solid propellant rocket motors or hybrid rocket motors having a total impulse capacity equal to or greater than 1.1 × 106 Ns;
Liquid propellant rocket engines integrated, or designed or modified to be integrated, into a liquid propellant propulsion system which has a total impulse capacity equal to or greater than 1.1 × 106 Ns;
Liquid propellant apogee engines or station-keeping engines specified in 2.A.1.c.2., designed or modified for use on satellites, may be treated as Category II, if the subsystem is exported subject to end-use statements and quantity limits appropriate for the excepted end-use stated above, when having a vacuum thrust not greater than 1 kN.
“Guidance sets”, usable in the systems specified in 1.A., capable of achieving system accuracy of 3.33 % or less of the “range” (e.g. a “CEP” of 10 km or less at a “range” of 300 km), except as provided in the Note below 2.A.1. for those designed for missiles with a “range” under 300 km or manned aircraft;
Thrust vector control sub-systems, usable in the systems specified in 1.A., except as provided in the Note below 2.A.1. for those designed for rocket systems that do not exceed the “range”/“payload” capability of systems specified in 1.A.;
2.A.1.e. includes the following methods of achieving thrust vector control:
Flexible nozzle;
Fluid or secondary gas injection;
Movable engine or nozzle;
Deflection of exhaust gas stream (jet vanes or probes);
Use of thrust tabs.
Weapon or warhead safing, arming, fuzing, and firing mechanisms, usable in the systems specified in 1.A., except as provided in the Note below 2.A.1. for those designed for systems other than those specified in 1.A.
The exceptions in 2.A.1.b., 2.A.1.d., 2.A.1.e. and 2.A.1.f. above may be treated as Category II if the subsystem is exported subject to end-use statements and quantity limits appropriate for the excepted end-use stated above.
None.
2.D.3. includes “software”, specially designed or modified to enhance the performance of “guidance sets” to achieve or exceed the accuracy specified in 2.A.1.d.
Subject to end-use statements appropriate for the excepted end-use, “software” controlled by 2.D.2. - 2.D.6. may be treated as Category II as follows:
Under 2.D.2. if specially designed or modified for liquid propellant apogee engines or station keeping engines, designed or modified for satellite applications as specified in the Note to 2.A.1.c.2.;
Under 2.D.3. if designed for missiles with a “range” of under 300 km or manned aircraft;
Under 2.D.4. if specially designed or modified for re-entry vehicles designed for non-weapon payloads;
Under 2.D.5. if designed for rocket systems that do not exceed the “range”“payload” capability of systems specified in 1.A.;
Under 2.D.6. if designed for systems other than those specified in 1.A.
Engines having both of the following characteristics:
“Maximum thrust value” greater than 400 N (achieved un-installed) excluding civil certified engines with a “maximum thrust value” greater than 8,89 kN (achieved un-installed); and
Specific fuel consumption of 0.15 kg N– 1 h– 1 or less (at maximum continuous power at sea level static conditions using the ICAO standard atmosphere);
In 3.A.1.a.1., “maximum thrust value” is the manufacturer's demonstrated maximum thrust for the engine type un-installed. The civil type certified thrust value will be equal to or less than the manufacturer's demonstrated maximum thrust for the engine type.
Engines designed or modified for systems specified in 1.A. or 19.A.2., regardless of thrust or specific fuel consumption.
Engines specified in 3.A.1. may be exported as part of a manned aircraft or in quantities appropriate for replacement parts for a manned aircraft.
In Item 3.A.2., “combined cycle engines” are the engines that employ two or more cycles of the following types of engines: gas-turbine engine (turbojet, turboprop, turbofan and turboshaft), ramjet, scramjet, pulse jet, pulse detonation engine, rocket motor (liquid/solid-propellant and hybrid).
In 3.A.3. “insulation” intended to be applied to the components of a rocket motor, i.e. the case, nozzle inlets, case closures, includes cured or semi-cured compounded rubber components comprising sheet stock containing an insulating or refractory material. It may also be incorporated as stress relief boots or flaps.
Refer to 3.C.2. for “insulation” material in bulk or sheet form.
See also Item 11.A.5.
Servo valves designed for flow rates equal to or greater than 24 litres per minute, at an absolute pressure equal to or greater than 7 MPa, that have an actuator response time of less than 100 ms.
Pumps, for liquid propellants, with shaft speeds equal to or greater than 8 000 rpm at the maximum operating mode or with discharge pressures equal to or greater than 7 MPa.
Gas turbines, for liquid propellant turbopumps, with shaft speeds equal to or greater than 8 000 rpm at the maximum operating mode.
An inner ring bore diameter between 12 and 50 mm;
An outer ring outside diameter between 25 and 100 mm; and
A width between 10 and 20 mm.
For the purposes of Item 3.A.9., a “turboprop engine system” incorporates all of the following:
Turboshaft engine; and
Power transmission system to transfer the power to a propeller.
According to the manufacturers technical specification can be equipped with numerical control units or a computer control, even when not equipped with such units at delivery; and
Have more than two axes which can be co-ordinated simultaneously for contouring control.
This item does not include machines that are not usable in the “production” of propulsion components and equipment (e.g. motor cases) for systems specified in 1.A.
Machines combining the function of spin-forming and flow-forming are, for the purpose of this item, regarded as flow-forming machines.
In 3.C.1. “interior lining” suited for the bond interface between the solid propellant and the case or insulating liner is usually a liquid polymer based dispersion of refractory or insulating materials e.g. carbon filled HTPB or other polymer with added curing agents to be sprayed or screeded over a case interior.
In 3.C.2. “insulation” intended to be applied to the components of a rocket motor, i.e. the case, nozzle inlets, case closures, includes cured or semi-cured compounded rubber sheet stock containing an insulating or refractory material. It may also be incorporated as stress relief boots or flaps specified in 3.A.3.
None.
Batch mixers with provision for mixing under vacuum in the range of zero to 13.326 kPa and with temperature control capability of the mixing chamber and having all of the following:
A total volumetric capacity of 110 litres or more; and
At least one “mixing/kneading shaft” mounted off centre;
In Item 4.B.3.a.2. the term “mixing/kneading shaft” does not refer to deagglomerators or knife-spindles.
Continuous mixers with provision for mixing under vacuum in the range of zero to 13.326 kPa and with a temperature control capability of the mixing chamber having any of the following:
Two or more mixing/kneading shafts; or
A single rotating shaft which oscillates and having kneading teeth/pins on the shaft as well as inside the casing of the mixing chamber;
Fluid energy mills usable for grinding or milling substances specified in 4.C.;
Metal powder “production equipment” usable for the “production”, in a controlled environment, of spherical, spheroidal or atomised materials specified in 4.C.2.c., 4.C.2.d. or 4.C.2.e.
4.B.3.d. includes:
Plasma generators (high frequency arc-jet) usable for obtaining sputtered or spherical metallic powders with organization of the process in an argon-water environment;
Electroburst equipment usable for obtaining sputtered or spherical metallic powders with organization of the process in an argon-water environment;
Equipment usable for the “production” of spherical aluminium powders by powdering a melt in an inert medium (e.g. nitrogen).
Hydrazine (CAS 302-01-2) with a concentration of more than 70 %;
Hydrazine derivatives as follows:
Monomethylhydrazine (MMH) (CAS 60-34-4);
Unsymmetrical dimethylhydrazine (UDMH) (CAS 57-14-7);
Hydrazine mononitrate (CAS 13464-97-6);
Trimethylhydrazine (CAS 1741-01-1);
Tetramethylhydrazine (CAS 6415-12-9);
N,N diallylhydrazine (CAS 5164-11-4);
Allylhydrazine (CAS 7422-78-8);
Ethylene dihydrazine;
Monomethylhydrazine dinitrate;
Unsymmetrical dimethylhydrazine nitrate;
Hydrazinium azide (CAS 14546-44-2);
Dimethylhydrazinium azide;
Hydrazinium dinitrate (CAS 13464-98-7);
Diimido oxalic acid dihydrazine (CAS 3457-37-2);
2-hydroxyethylhydrazine nitrate (HEHN);
Hydrazinium perchlorate (CAS 27978-54-7);
Hydrazinium diperchlorate (CAS 13812-39-0);
Methylhydrazine nitrate (MHN) (CAS 29674-96-2);
Diethylhydrazine nitrate (DEHN);
Spherical or spheroidal aluminium powder (CAS 7429-90-5) in particle size of less than 200 × 10– 6 m (200 μm) and an aluminium content of 97 % by weight or more, if at least 10 % of the total weight is made up of particles of less than 63 μm, according to ISO 2591-1:1988 or national equivalents;
A particle size of 63 μm (ISO R-565) corresponds to 250 mesh (Tyler) or 230 mesh (ASTM standard E-11).
Metal powders of any of the following: zirconium (CAS 7440-67-7), beryllium (CAS 7440-41-7), magnesium (CAS 7439-95-4) or alloys of these, if at least 90 % of the total particles by particle volume or weight are made up of particles of less than 60 μm (determined by measurement techniques such as using a sieve, laser diffraction or optical scanning), whether spherical, atomised, spheroidal, flaked or ground, consisting of 97 % by weight or more of any of the above mentioned metals;
In a multimodal particle distribution (e.g. mixtures of different grain sizes) in which one or more modes are controlled, the entire powder mixture is controlled.
The natural content of hafnium (CAS 7440-58-6) in the zirconium (typically 2 % to 7 %) is counted with the zirconium.
Metal powders of either boron (CAS 7440-42-8) or boron alloys with a boron content of 85 % or more by weight, if at least 90 % of the total particles by particle volume or weight are made up of particles of less than 60 μm (determined by measurement techniques such as using a sieve, laser diffraction or optical scanning), whether spherical, atomised, spheroidal, flaked or ground;
In a multimodal particle distribution (e.g. mixtures of different grain sizes) in which one or more modes are controlled, the entire powder mixture is controlled.
High energy density materials, usable in the systems specified in 1.A. or 19.A., as follows:
Mixed fuels that incorporate both solid and liquid fuels, such as boron slurry, having a mass- based energy density of 40 × 106 J/kg or greater;
Other high energy density fuels and fuel additives (e.g., cubane, ionic solutions, JP-10) having a volume-based energy density of 37.5 × 109 J/m3 or greater, measured at 20 °C and one atmosphere (101.325 kPa) pressure.
Item 4.C.2.f.2. does not control fossil refined fuels and biofuels produced from vegetables, including fuels for engines certified for use in civil aviation, unless specifically formulated for systems specified in 1.A. or 19.A.
Hydrazine replacement fuels as follows:
1,2-Dimethylaminoethylazide (DMAZ) (CAS 86147-04-8).
Perchlorates, chlorates or chromates mixed with powdered metals or other high energy fuel components.
Oxidiser substances usable in liquid propellant rocket engines as follows:
Dinitrogen trioxide (CAS 10544-73-7);
Nitrogen dioxide (CAS 10102-44-0)/dinitrogen tetroxide (CAS 10544-72-6);
Dinitrogen pentoxide (CAS 10102-03-1);
Mixed Oxides of Nitrogen (MON);
Inhibited Red Fuming Nitric Acid (IRFNA) (CAS 8007-58-7);
Compounds composed of fluorine and one or more of other halogens, oxygen or nitrogen;
Item 4.C.4.a.6. does not control Nitrogen Trifluoride (NF3) (CAS 7783-54-2) in a gaseous state as it is not usable for missile applications.
Mixed Oxides of Nitrogen (MON) are solutions of Nitric Oxide (NO) in Dinitrogen Tetroxide/Nitrogen Dioxide (N2O4/NO2) that can be used in missile systems. There are a range of compositions that can be denoted as MONi or MONij where i and j are integers representing the percentage of Nitric Oxide in the mixture (e.g. MON3 contains 3 % Nitric Oxide, MON25 25 % Nitric Oxide. An upper limit is MON40, 40 % by weight).
Oxidiser substances usable in solid propellant rocket motors as follows:
Ammonium perchlorate (AP) (CAS 7790-98-9);
Ammonium dinitramide (ADN) (CAS 140456-78-6);
Nitro-amines (cyclotetramethylene — tetranitramine (HMX) (CAS 2691-41-0); cyclotrimethylene — trinitramine (RDX) (CAS 121-82-4);
Hydrazinium nitroformate (HNF) (CAS 20773-28-8);
2,4,6,8,10,12-Hexanitrohexaazaisowurtzitane (CL-20) (CAS 135285-90-4).
Carboxy — terminated polybutadiene (including carboxyl — terminated polybutadiene) (CTPB);
Hydroxy — terminated polybutadiene (including hydroxyl — terminated polybutadiene) (HTPB);
Glycidyl azide polymer (GAP);
Polybutadiene — Acrylic Acid (PBAA);
Polybutadiene — Acrylic Acid — Acrylonitrile (PBAN);
Polytetrahydrofuran polyethylene glycol (TPEG).
Polyglycidyl nitrate (PGN or poly-GLYN) (CAS 27814-48- 8).
Polytetrahydrofuran polyethylene glycol (TPEG) is a block co-polymer of poly 1,4-Butanediol (CAS 110-63-4) and polyethylene glycol (PEG) (CAS 25322-68-3).
Bonding agents as follows:
Tris (1-(2-methyl)aziridinyl) phosphine oxide (MAPO) (CAS 57-39-6);
1,1′,1″-trimesoyl-tris(2-ethylaziridine) (HX-868, BITA) (CAS 7722-73- 8);
Tepanol (HX-878), reaction product of tetraethlylenepentamine, acrylonitrile and glycidol (CAS 68412-46-4);
Tepan (HX-879), reaction product of tetraethlylenepentamine and acrylonitrile (CAS 68412-45-3);
Polyfunctional aziridine amides with isophthalic, trimesic, isocyanuric, or trimethyladipic backbone also having a 2-methyl or 2-ethyl aziridine group;
Item 4.C.6.a.5. includes:
1,1′-Isophthaloyl-bis(2-methylaziridine) (HX-752) (CAS 7652-64-4);
2,4,6-tris(2-ethyl-1-aziridinyl)-1,3,5-triazine (HX-874) (CAS 18924-91-9);
1,1′-trimethyladipoylbis(2-ethylaziridine) (HX-877) (CAS 71463-62-2).
Curing reaction catalysts as follows: Triphenyl bismuth (TPB) (CAS 603-33-8);
Burning rate modifiers, as follows:
Carboranes, decaboranes, pentaboranes and derivatives thereof;
Ferrocene derivatives, as follows:
Catocene (CAS 37206-42-1);
Ethyl ferrocene (CAS 1273-89-8);
Propyl ferrocene;
n-Butyl ferrocene (CAS 31904-29-7);
Pentyl ferrocene (CAS 1274-00-6);
Dicyclopentyl ferrocene;
Dicyclohexyl ferrocene;
Diethyl ferrocene (CAS 1273-97-8);
Dipropyl ferrocene;
Dibutyl ferrocene (CAS 1274-08-4);
Dihexyl ferrocene (CAS 93894-59-8);
Acetyl ferrocene (CAS 1271-55-2)/1,1′-diacetyl ferrocene (CAS 1273-94-5);
Ferrocene carboxylic acid (CAS 1271-42-7)/1,1′- Ferrocenedicarboxylic acid (CAS 1293-87-4);
Butacene (CAS 125856-62-4);
Other ferrocene derivatives usable as rocket propellant burning rate modifiers;
Item 4.C.6.c.2.o does not control ferrocene derivatives that contain a six carbon aromatic functional group attached to the ferrocene molecule.
Esters and plasticisers as follows:
Triethylene glycol dinitrate (TEGDN) (CAS 111-22-8);
Trimethylolethane trinitrate (TMETN) (CAS 3032-55-1);
1,2,4-butanetriol trinitrate (BTTN) (CAS 6659-60-5);
Diethylene glycol dinitrate (DEGDN) (CAS 693-21-0);
4,5 diazidomethyl-2-methyl-1,2,3-triazole (iso- DAMTR);
Nitratoethylnitramine (NENA) based plasticisers, as follows:
Methyl-NENA (CAS 17096-47-8);
Ethyl-NENA (CAS 85068-73-1);
Butyl-NENA (CAS 82486-82-6);
Dinitropropyl based plasticisers, as follows:
Bis (2,2-dinitropropyl) acetal (BDNPA) (CAS 5108-69-0);
Bis (2,2-dinitropropyl) formal (BDNPF) (CAS 5917-61-3);
Stabilisers as follows:
2-Nitrodiphenylamine (CAS 119-75-5);
N-methyl-p-nitroaniline (CAS 100-15-2).
RESERVED FOR FUTURE USE
Designed for rocket systems; and
Usable in the systems specified in 1.A. or 19.A.1.
Filament winding machines or fibre placement machines, of which the motions for positioning, wrapping and winding fibres can be co-ordinated and programmed in three or more axes, designed to fabricate composite structures or laminates from fibrous or filamentary materials, and co- ordinating and programming controls;
Tape-laying machines of which the motions for positioning and laying tape and sheets can be co-ordinated and programmed in two or more axes, designed for the manufacture of composite airframes and missile structures;
Multi-directional, multi-dimensional weaving machines or interlacing machines, including adapters and modification kits for weaving, interlacing or braiding fibres to manufacture composite structures;
6.B.1.c. does not control textile machinery not modified for the end-uses stated.
Equipment designed or modified for the production of fibrous or filamentary materials as follows:
Equipment for converting polymeric fibres (such as polyacrylonitrile, rayon, or polycarbosilane) including special provision to strain the fibre during heating;
Equipment for the vapour deposition of elements or compounds on heated filament substrates;
Equipment for the wet-spinning of refractory ceramics (such as aluminium oxide);
Equipment designed or modified for special fibre surface treatment or for producing prepregs and preforms, including rollers, tension stretchers, coating equipment, cutting equipment and clicker dies.
Examples of components and accessories for the machines specified in 6.B.1. are moulds, mandrels, dies, fixtures and tooling for the preform pressing, curing, casting, sintering or bonding of composite structures, laminates and manufactures thereof.
Maximum working pressure equal to or greater than 69 MPa;
Designed to achieve and maintain a controlled thermal environment of 600 °C or greater; and
Possessing a chamber cavity with an inside diameter of 254 mm or greater.
The only resin impregnated fibre prepregs specified in 6.C.1. are those using resins with a glass transition temperature (Tg), after cure, exceeding 145 °C as determined by ASTM D4065 or national equivalents.
Designed for rocket systems; and
Usable in the systems specified in 1.A. or 19.A.1.
Cylinders having a diameter of 120 mm or greater and a length of 50 mm or greater;
Tubes having an inner diameter of 65 mm or greater and a wall thickness of 25 mm or greater and a length of 50 mm or greater; or
Blocks having a size of 120 mm × 120 mm × 50 mm or greater.
Bulk machinable silicon-carbide reinforced unfired ceramic usable for nose tips usable in systems specified in 1.A. or 19.A.1.;
Reinforced silicon-carbide ceramic composites usable for nose tips, re-entry vehicles, nozzle flaps, usable in systems specified in 1.A. or 19.A.1.
Tungsten and alloys in particulate form with a tungsten content of 97 % by weight or more and a particle size of 50 × 10– 6 m (50 μm) or less;
Molybdenum and alloys in particulate form with a molybdenum content of 97 % by weight or more and a particle size of 50 × 10– 6 m (50 μm) or less;
Tungsten materials in the solid form having all of the following:
Any of the following material compositions:
Tungsten and alloys containing 97 % by weight or more of tungsten;
Copper infiltrated tungsten containing 80 % by weight or more of tungsten; or
Silver infiltrated tungsten containing 80 % by weight or more of tungsten; and
Able to be machined to any of the following products:
Cylinders having a diameter of 120 mm or greater and a length of 50 mm or greater;
Tubes having an inner diameter of 65 mm or greater and a wall thickness of 25 mm or greater and a length of 50 mm or greater;
or
Blocks having a size of 120 mm × 120 mm × 50 mm or greater.
Having an ultimate tensile strength, measured at 20 °C, equal to or greater than:
0,9 GPa in the solution annealed stage; or
1,5 GPa in the precipitation hardened stage; and
Any of the following forms:
Sheet, plate or tubing with a wall or plate thickness equal to or less than 5.0 mm; or
Tubular forms with a wall thickness equal to or less than 50 mm and having an inner diameter equal to or greater than 270 mm.
Maraging steels are iron alloys:
Generally characterised by high nickel, very low carbon content and use substitutional elements or precipitates to produce strengthening and age- hardening of the alloy; and
Subjected to heat treatment cycles to facilitate the martensitic transformation process (solution annealed stage) and subsequently age hardened (precipitation hardened stage).
Having all of the following characteristics:
Containing 17.0 – 23.0 weight percent chromium and 4.5 – 7.0 weight percent nickel;
Having a titanium content of greater than 0.10 weight percent; and
A ferritic-austenitic microstructure (also referred to as a two-phase microstructure ) of which at least 10 % is austenite by volume (according to ASTM E-1181-87 or national equivalents); and
Any of the following forms:
Ingots or bars having a size of 100 mm or more in each dimension;
Sheets having a width of 600 mm or more and a thickness of 3 mm or less; or
Tubes having an outer diameter of 600 mm or more and a wall thickness of 3 mm or less.
RESERVED FOR FUTURE USE
RESERVED FOR FUTURE USE
“Scale factor”“repeatability” less (better) than 1 250 ppm; and
“Bias”“repeatability” less (better) than 1 250 micro g.
Item 9.A.3. does not control accelerometers specially designed and developed as Measurement While Drilling (MWD) sensors for use in downhole well service operations.
9.A.5. does not include accelerometers that are designed to measure vibration or shock.
An “integrated navigation system” typically incorporates all of the following components:
An inertial measurement device (e.g. an attitude and heading reference system, inertial reference unit, or inertial navigation system);
One or more external sensors used to update the position and/or velocity, either periodically or continuously throughout the flight (e.g. satellite navigation receiver, radar altimeter, and/or Doppler radar); and
Integration hardware and software.
Internal tilt compensation in pitch (+/– 90 degrees) and having roll (+/– 180 degrees) axes.
Capable of providing azimuthal accuracy better (less) than 0.5 degrees rms at latitudes of +/– 80 degrees, referenced to local magnetic field; and
Designed or modified to be integrated with flight control and navigation systems.
Flight control and navigation systems in Item 9.A.8. include gyrostabilisers, automatic pilots and inertial navigation systems.
Equipment specified in 9.B.1. includes the following:
For laser gyro equipment, the following equipment used to characterise mirrors, having the threshold accuracy shown or better:
Scatterometer (10 ppm);
Reflectometer (50 ppm);
Profilometer (5 Angstroms);
For other inertial equipment:
Inertial Measurement Unit (IMU) Module Tester;
IMU Platform Tester;
IMU Stable Element Handling Fixture;
IMU Platform Balance Fixture;
Gyro Tuning Test Station;
Gyro Dynamic Balance Station;
Gyro Run-In/Motor Test Station;
Gyro Evacuation and Filling Station;
Centrifuge Fixture for Gyro Bearings;
Accelerometer Axis Align Station;
Accelerometer Test Station;
Fiber Optic Gyro Coil Winding Machines.
Balancing machines having all the following characteristics:
Not capable of balancing rotors/assemblies having a mass greater than 3 kg;
Capable of balancing rotors/assemblies at speeds greater than 12 500 rpm;
Capable of correcting unbalance in two planes or more; and
Capable of balancing to a residual specific unbalance of 0.2 g mm per kg of rotor mass;
Indicator heads (sometimes known as balancing instrumentation) designed or modified for use with machines specified in 9.B.2.a.;
Motion simulators/rate tables (equipment capable of simulating motion) having all of the following characteristics:
Two axes or more;
Designed or modified to incorporate sliprings or integrated non-contact devices capable of transferring electrical power, signal information, or both; and
Having any of the following characteristics:
For any single axis having all of the following:
Capable of rates of 400 degrees/s or more, or 30 degrees/s or less;
and
A rate resolution equal to or less than 6 degrees/s and an accuracy equal to or less than 0.6 degrees/s;
Having a worst-case rate stability equal to or better (less) than plus or minus 0.05 % averaged over 10 degrees or more; or
A positioning “accuracy” equal to or less (better) than 5 arc second;
Positioning tables (equipment capable of precise rotary positioning in any axes) having the following characteristics:
Two axes or more; and
A positioning “accuracy” equal to or less (better) than 5 arc second;
Centrifuges capable of imparting accelerations above 100 g and designed or modified to incorporate sliprings or integrated non-contact devices capable of transferring electrical power, signal information, or both.
None.
A common form of integration “software” employs Kalman filtering.
Equipment or “software” specified in 9.A. or 9.D. may be exported as part of a manned aircraft, satellite, land vehicle, marine/submarine vessel or geophysical survey equipment or in quantities appropriate for replacement parts for such applications.
Systems, equipment or valves specified in 10.A. may be exported as part of a manned aircraft or satellite or in quantities appropriate for replacement parts for manned aircraft.
None.
“Software” specified in 10.D.1. may be exported as part of a manned aircraft or satellite or in quantities appropriate for replacement parts for manned aircraft.
Laser radar systems embody specialised transmission, scanning, receiving and signal processing techniques for utilisation of lasers for echo ranging, direction finding and discrimination of targets by location, radial speed and body reflection characteristics.
Designed or modified for use in systems specified in 1.A.; or
Designed or modified for airborne applications and having any of the following:
Capable of providing navigation information at speeds in excess of 600 m/s;
Employing decryption, designed or modified for military or governmental services, to gain access to GNSS secure signal/data; or
Being specially designed to employ anti-jam features (e.g. null steering antenna or electronically steerable antenna) to function in an environment of active or passive countermeasures.
11.A.3.b.2. and 11.A.3.b.3. do not control equipment designed for commercial, civil or “Safety of Life” (e.g. data integrity, flight safety) GNSS services.
Terrain contour mapping equipment;
Scene mapping and correlation (both digital and analogue) equipment;
Doppler navigation radar equipment;
Passive interferometer equipment;
Imaging sensor equipment (both active and passive).
Interstage connectors referred to in 11.A.5. also include electrical connectors installed between systems specified in 1.A.1. or 19.A.1. and their “payload”.
None.
None.
Design “technology” for shielding systems;
Design “technology” for the configuration of hardened electrical circuits and subsystems;
Design “technology” for determination of hardening criteria for the above.
Gravity meters having all the following:
A static or operational accuracy equal to or less (better) than 0.7 milligal (mgal); and
A time to steady-state registration of two minutes or less;
Gravity gradiometers.
Tracking systems which use a code translator installed on the rocket or unmanned aerial vehicle in conjunction with either surface or airborne references or navigation satellite systems to provide real-time measurements of inflight position and velocity;
Range instrumentation radars including associated optical/infrared trackers with all of the following capabilities:
Angular resolution better than 1.5 mrad;
Range of 30 km or greater with a range resolution better than 10 m rms;
and
Velocity resolution better than 3 m/s.
Item 12.A.6. does not control thermal batteries specially designed for rocket systems or unmanned aerial vehicles that are not capable of a “range” equal to or greater than 300 km.
Thermal batteries are single use batteries that contain a solid non-conducting inorganic salt as the electrolyte. These batteries incorporate a pyrolytic material that, when ignited, melts the electrolyte and activates the battery.
None.
None.
Rated for continuous operation at temperatures from below – 45 °C to above + 55 °C; or
Designed as ruggedised or “radiation hardened”.
None.
None.
None.
Item 13 equipment may be exported as part of a manned aircraft or satellite or in quantities appropriate for replacement parts for manned aircraft.
Designed to meet military specifications for ruggedised equipment; or
Designed or modified for military use and being any of the following types:
Analogue-to-digital converter “microcircuits”, which are “radiation- hardened” or have all of the following characteristics:
Rated for operation in the temperature range from below – 54 °C to above + 125 °C; and
Hermetically sealed; or
Electrical input type analogue-to-digital converter printed circuit boards or modules, having all of the following characteristics:
Rated for operation in the temperature range from below – 45 °C to above + 80 °C; and
Incorporating “microcircuits” specified in 14.A.1.b.1.
None.
None.
None.
None.
Vibration test systems employing feedback or closed loop techniques and incorporating a digital controller, capable of vibrating a system at an acceleration equal to or greater than 10 g rms between 20 Hz and 2 kHz while imparting forces equal to or greater than 50 kN, measured “bare table”;
Digital controllers, combined with specially designed vibration test “software”, with a “real-time control bandwidth” greater than 5 kHz and designed for use with vibration test systems specified in 15.B.1.a.;
“Real-time control bandwidth” is defined as the maximum rate at which a controller can execute complete cycles of sampling, processing data and transmitting control signals.
Vibration thrusters (shaker units), with or without associated amplifiers, capable of imparting a force equal to or greater than 50 kN, measured “bare table”, and usable in vibration test systems specified in 15.B.1.a.;
Test piece support structures and electronic units designed to combine multiple shaker units into a complete shaker system capable of providing an effective combined force equal to or greater than 50 kN, measured “bare table”, and usable in vibration test systems specified in 15.B.1.a.
Vibration test systems incorporating a digital controller are those systems, the functions of which are, partly or entirely, automatically controlled by stored and digitally coded electrical signals.
Item 15.B.2 does not control wind-tunnels for speeds of Mach 3 or less with dimension of the “test cross section size” equal to or less than 250 mm.
Environmental chambers capable of simulating all the following flight conditions:
Having any of the following:
Altitude equal to or greater than 15 km; or
Temperature range from below – 50 °C to above 125 °C; and
Incorporating, or designed or modified to incorporate, a shaker unit or other vibration test equipment to produce vibration environments equal to or greater than 10 g rms, measured “bare table”, between 20 Hz and 2 kHz while imparting forces equal to or greater than 5 kN;
Environmental chambers capable of simulating all of the following flight conditions:
Acoustic environments at an overall sound pressure level of 140 dB or greater (referenced to 2 × 10– 5 N/m2) or with a total rated acoustic power output of 4 kW or greater; and
Any of the following:
Altitude equal to or greater than 15 km; or
Temperature range from below – 50 °C to above 125 °C.
15.B.5. does not control equipment specially designed for medical purposes.
In Item 15.B. “bare table” means a flat table, or surface, with no fixture or fittings.
None.
This control only applies when the equipment is supplied with “software” specified in 16.D.1.
None.
None.
The modelling includes in particular the aerodynamic and thermodynamic analysis of the systems.
17.D.1. includes “software” specially designed for analysis of signature reduction.
17.E.1. includes databases specially designed for analysis of signature reduction.
A “detector” is defined as a mechanical, electrical, optical or chemical device that automatically identifies and records, or registers a stimulus such as an environmental change in pressure or temperature, an electrical or electromagnetic signal or radiation from a radioactive material. This includes devices that sense by one time operation or failure.
None.
None.
None.
Having any of the following:
An autonomous flight control and navigation capability; or
Capability of controlled flight out of the direct vision range involving a human operator; and
Having any of the following:
Incorporating an aerosol dispensing system/mechanism with a capacity greater than 20 litres; or
Designed or modified to incorporate an aerosol dispensing system/mechanism with a capacity greater than 20 litres.
Item 19.A.3. does not control model aircraft, specially designed for recreational or competition purposes.
None.
Individual rocket stages, not specified in 2.A.1., usable in systems specified in 19.A.;
Rocket propulsion subsystems, not specified in 2.A.1., usable in the systems specified in 19.A.1., as follows:
Solid propellant rocket motors or hybrid rocket motors having a total impulse capacity equal to or greater than 8.41 × 105 Ns, but less than 1.1 × 106 Ns;
Liquid propellant rocket engines integrated, or designed or modified to be integrated, into a liquid propellant propulsion system which has a total impulse capacity equal to or greater than 8.41 × 105 Ns, but less than 1.1 × 106 Ns;
None.
Annular Bearing Engineers Committee
American Bearing Manufactures Association
American National Standards Institute
1 × 10– 10 metre
American Society for Testing and Materials
unit of pressure
degree Celsius
cubic centimetre
Chemical Abstracts Service
Circle of Equal Probability
decibel
gram; also, acceleration due to gravity
gigahertz
Global Navigation Satellite System e.g. “Galileo”
—
Global'naya Navigatsionnaya Sputnikovaya Sistema
—
Global Positioning System
hour
hertz
Hydroxy–Terminated Polybutadiene
International Civil Aviation Organisation
Institute of Electrical and Electronic Engineers
Infrared
International Organization for Standardization
joule
Japanese Industrial Standard
Kelvin
kilogram
kilohertz
kilometre
kilonewton
kilopascal
kilowatt
metre
million electron volt or mega electron volt
megahertz
10– 5 m/s2 (also called mGal, mgal or milligalileo)
millimetre
mm of mercury
megapascal
milliradian
millisecond
micrometre
newton
pascal
parts per million
radiation absorbed dose
radio frequency
root mean square
revolutions per minute
Re-entry Vehicles
second
glass transition temperature
Tyler mesh size, or Tyler standard sieve series
Unmanned Aerial Vehicle
Ultra violet
Unit(from) | Unit(to) | Conversion |
---|---|---|
bar | pascal (Pa) | 1 bar = 100 kPa |
g (gravity) | m/s2 | 1 g = 9.806 65 m/s2 |
mrad (millirad) | degrees (angle) | 1 mrad ≈ 0.0573° |
rads | ergs/gram of Si | 1 rad (Si) = 100 ergs/gram of silicon (= 0.01 gray [Gy]) |
Tyler 250 mesh | mm | for a Tyler 250 mesh, mesh opening 0.063 mm |
Members agree that, in those cases where the term “national equivalents” are specifically allowed as alternatives to specified International Standards, the technical methods and parameters embodied in the national equivalent would ensure that the requirements of the standard set by the specified International Standards are met.”.
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