Commission Regulation (EU) No 582/2011Show full title

4. TECHNICAL REQUIREMENTS U.K.

4.1. General requirements U.K.

4.1.1. The replacement pollution control device shall be designed, constructed and capable of being mounted so as to enable the engine and vehicle to comply with the rules with which it was originally in compliance and that pollutant emissions are effectively limited throughout the normal life of the vehicle under normal conditions of use. U.K.

4.1.2. The installation of the replacement pollution control device shall be at the exact position of the original equipment pollution control device, and the position on the exhaust line of the exhaust gas, temperature and pressure sensors shall not be modified. U.K.

4.1.3. If the original equipment pollution control device includes thermal protections, the replacement pollution control device shall include equivalent protections. U.K.

4.1.4. Upon request of the applicant for the type-approval of the replacement component, the approval authority that granted the original type-approval of the engine system shall make available on a non-discriminatory basis, the information referred to in points 3.2.12.2.6.8.1 and 3.2.12.2.6.8.2 in Part 1 of the information document contained in Appendix 4 to Annex I for each engine to be tested. U.K.

4.2. General durability requirements U.K.

The replacement pollution control device shall be durable, that is designed, constructed and capable of being mounted so that reasonable resistance to the corrosion and oxidation phenomena to which it is exposed is obtained, having regard to the conditions of use of the vehicle.

The design of the replacement pollution control device shall be such that the elements active in controlling emissions are adequately protected from mechanical shock so as to ensure that pollutant emissions are effectively limited throughout the normal life of the vehicle under normal conditions of use.

The applicant for type-approval shall provide to the approval authority details of the test used to establish robustness to mechanical shock and the results of that test.

4.3. Requirements regarding emissions U.K.

[F1 4.3.1. Outline of procedure for evaluation of emissions U.K.

The engines indicated in point (a) of Article 16(4) equipped with a complete emissions control system, including the replacement pollution control device of the type for which approval is requested, shall be subjected to tests appropriate for the intended application as described in Annex 4 to UNECE Regulation No 49, in order to compare its performance with the original emissions control system in accordance with the procedure described in points 4.3.1.1 and 4.3.1.2.]

4.3.1.1. Where the replacement pollution control device does not comprise the complete emissions control system, only new original equipment or new original replacement pollution control components shall be used to provide a complete system. U.K.

4.3.1.2. The emissions control system shall be aged according to the procedure described in point 4.3.2.4 and retested to establish the durability of its emissions performance. U.K.

The durability of a replacement pollution control device is determined from a comparison of the two successive sets of exhaust gas emissions tests:

(a)

the first set is that made with the replacement pollution control device which has been run in with 12 WHSC Cycles;

(b)

the second set is that made with the replacement pollution control device which has been aged by the procedures detailed below.

Where approval is applied for different types of engines from the same engine manufacturer, and provided that these different types of engines are fitted with an identical original equipment pollution control system, the testing may be limited to at least two engines selected after agreement with the approval authority.

Textual Amendments

F1 Substituted by Commission Regulation (EU) No 133/2014 of 31 January 2014 amending, for the purposes of adapting to technical progress as regards emission limits, Directive 2007/46/EC of the European Parliament and of the Council, Regulation (EC) No 595/2009 of the European Parliament and of the Council and Commission Regulation (EU) No 582/2011 (Text with EEA relevance).

4.3.2. Procedure for evaluation of emissions performance of a replacement pollution control device U.K.

4.3.2.1. The engine or engines shall be fitted with a new original equipment pollution control device according to Article 16(4). U.K.

[F1 The exhaust after-treatment system shall be preconditioned with 12 WHSC cycles. After this preconditioning, the engines shall be tested in accordance with the WHDC test procedures described in Annex 4 to UNECE Regulation No 49. Three exhaust gas tests of each appropriate type shall be performed.]

The test engines with the original exhaust after-treatment system or original replacement exhaust after-treatment system shall comply with the limit values according to the type-approval of the engine or vehicle.

4.3.2.2. Exhaust gas test with replacement pollution control device U.K.

The replacement pollution control device to be evaluated shall be fitted to the exhaust after-treatment system tested according to the requirements of point 4.3.2.1, replacing the relevant original equipment exhaust after-treatment device.

[F1 The exhaust after-treatment system incorporating the replacement pollution control device shall then be preconditioned with 12 WHSC cycles. After this preconditioning, the engines shall be tested in accordance with the WHDC procedures described in Annex 4 to UNECE Regulation No 49. Three exhaust gas tests of each appropriate type shall be performed.]

4.3.2.3. Initial evaluation of the emission of pollutants of engines equipped with replacement pollution control devices U.K.

The requirements regarding emissions of the engines equipped with the replacement pollution control device shall be deemed to be fulfilled if the results for each regulated pollutant (CO, HC, NMHC, methane, NO_x, NH₃, particulate mass and particle number as appropriate for the type-approval of the engine) meet the following conditions:

(1)

M ≤ 0,85S + 0,4G;

(2)

M ≤ G

where:

M

:

mean value of the emissions of one pollutant obtained from the three tests with the replacement pollution control device.

S

:

mean value of the emissions of one pollutant obtained from the three tests with the original or original replacement pollution control device.

G

:

limit value of the emissions of one pollutant according to the type-approval of the vehicle.

[F2 4.3.2.4. Durability of emissions performance U.K.

The exhaust after-treatment system tested in accordance with point 4.3.2.2 and incorporating the replacement pollution control device shall be subjected to the durability procedures described in Appendix 3.]

Textual Amendments

F2 Substituted by Commission Regulation (EU) 2016/1718 of 20 September 2016 amending Regulation (EU) No 582/2011 with respect to emissions from heavy-duty vehicles as regards the provisions on testing by means of portable emission measurement systems (PEMS) and the procedure for the testing of the durability of replacement pollution control devices (Text with EEA relevance).

4.3.2.5. Exhaust gas test with aged replacement pollution control device U.K.

The aged exhaust after-treatment system incorporating the aged replacement control device shall then be fitted to the test engine used in points 4.3.2.1 and 4.3.2.2

[F1 The aged exhaust after-treatment systems shall be preconditioned with 12 WHSC cycles and subsequently tested using the WHDC procedures described in Annex 4 to UNECE Regulation No 49. Three exhaust gas tests of each appropriate type shall be performed.]

[F1 4.3.2.6. Determination of ageing factor for the replacement pollution control device U.K.

The ageing factor for each pollutant shall be the ratio of the applied emission value at the useful life end point and that at the start of the service accumulation (e.g., if the emissions of pollutant A at the start of the service accumulation are 1.50 g/kWh and those at the useful life end point are 1.82 g/kWh, the ageing factor is 1,82/1,50 = 1,21).]

4.3.2.7. Evaluation of the emission of pollutants of engines equipped with replacement pollution control devices U.K.

The requirements regarding emissions of the engines equipped with the aged replacement pollution control device (as described in point 4.3.2.5) shall be deemed to be fulfilled if the results for each regulated pollutant (CO, HC, NMHC, methane, NO_x, NH₃, particulate mass and particle number as appropriate for the type-approval of the engine) meet the following condition:

M × AF ≤ G

where:

M

:

mean value of the emissions of one pollutant obtained from the three tests with the preconditioned replacement pollution control device before ageing (i.e. results from Section 4.3.2)

AF

:

the aging factor for one pollutant

G

:

limit value of the emissions of one pollutant according to the type-approval of the vehicle(s).

4.3.3. Replacement pollution control device technology family U.K.

The manufacturer may identify a replacement pollution control device technology family, to be identified by basic characteristics which shall be common to devices within the family.

To belong to the same replacement pollution control device technology family the replacement pollution control devices shall have the following:

(a)

the same emissions control mechanism (oxidation catalyst, three-way catalyst, particulate filter, selective catalytic reduction for NO_x, etc.);

(b)

the same substrate material (same type of ceramic, or same type of metal);

(c)

the same substrate type and cell density;

(d)

the same catalytically active materials and, where more than one, the same ratio of catalytically active materials;

(e)

the same total charge of catalytically active materials;

(f)

the same type of washcoat applied by the same process.

4.3.4. Assessment of the durability of emissions performance of a replacement pollution control device by use of a technology family aging factor U.K.

Where the manufacturer has identified a replacement pollution control technology family, the procedures described in point 4.3.2 may be used to determine the Aging Factors (AFs) for each pollutant for the parent of that family. The engine on which these tests are conducted shall have a minimum engine displacement of [0,75 dm³] per cylinder.

4.3.4.1. Determination of durability performance of family members U.K.

A replacement pollution control device A within a family and intended to be mounted on an engine of displacement C_A may be considered to have the same aging factors as the parent replacement pollution control device P, determined on an engine of displacement C_P, if the following conditions are fulfilled:

V_A/C_A ≥ V_P/C_P

where:

V_A

:

Substrate volume (in dm³) of replacement pollution control device A

V_P

:

Substrate volume (in dm³) of the parent replacement pollution control device P of the same family; and

both engines use the same method for regeneration of any emissions control devices incorporated in the original exhaust after-treatment system. This requirement shall apply only where devices requiring regeneration are incorporated in the original exhaust after-treatment system.

If these conditions are fulfilled, the emissions durability performance of other members of the family may be determined from the emissions results (S) of that family member determined according to the requirements set out in points 4.3.2.1, 4.3.2.2 and 4.3.2.3 and using the Aging Factors determined for the parent of that family.

[F3 4.3.5. Fuels U.K.

In the case described in point 1.1.2 of Annex I, the test procedure laid down in points 4.3.1 to 4.3.2.7 of this Annex shall be conducted with the fuels declared by the manufacturer of the original engine system. However, in agreement with the type-approval authority, the durability procedure set out in Appendix 3 and referred to in point 4.3.2.4 may be performed only with the fuel which represents the worst case in terms of ageing.]

Textual Amendments

F3 Inserted by Commission Regulation (EU) 2016/1718 of 20 September 2016 amending Regulation (EU) No 582/2011 with respect to emissions from heavy-duty vehicles as regards the provisions on testing by means of portable emission measurement systems (PEMS) and the procedure for the testing of the durability of replacement pollution control devices (Text with EEA relevance).

4.4. Requirements regarding exhaust back-pressure U.K.

The back pressure shall not cause the complete exhaust system to exceed the value specified according to point 4.1.2 of Annex I.

4.5. Requirements regarding OBD compatibility (applicable only to replacement pollution control devices intended to be fitted to vehicles equipped with an OBD system) U.K.

4.5.1. OBD compatibility demonstration is required only when the original pollution control device was monitored in the original configuration. U.K.

4.5.2. The compatibility of the replacement pollution control device with the OBD system shall be demonstrated by using the procedures described in Annex X to this Regulation and Annex 9B to UN/ECE Regulation No 49 for replacement pollution control devices intended to be fitted to engines or vehicles type-approved in accordance with Regulation (EC) No 595/2009 and this Regulation. U.K.

4.5.3. The provisions in UN/ECE Regulation No 49 applicable to components other than pollution control devices shall not apply. U.K.

4.5.4. The replacement pollution control device manufacturer may use the same preconditioning and test procedure as used during the original type-approval. In this case, the approval authority which granted original type-approval of an engine of a vehicle shall provide, on request and on a non-discriminatory basis, Appendix on test conditions to Appendix 4 to Annex I which contains the number and type of preconditioning cycles and the type of test cycle used by the original equipment manufacturer for OBD testing of the pollution control device. U.K.

4.5.5. In order to verify the correct installation and functioning of all other components monitored by the OBD system, the OBD system shall indicate no malfunction and have no stored fault codes prior to the installation of any of the replacement pollution control device. An evaluation of the status of the OBD system at the end of the tests described in points 4.3.2 to 4.3.2.7 may be used for this purpose. U.K.

4.5.6. The malfunction indicator shall not activate during vehicle operation required by points 4.3.2 to 4.3.2.7. U.K.

[F3 4.6. Requirements regarding compatibility with the NO _x control measures (applicable only to replacement pollution control devices to be fitted to vehicles equipped with sensors directly measuring NO _x concentration in the exhaust) U.K.

4.6.1. NO _x control measures compatibility demonstration is required only when the original pollution control device was monitored in the original configuration. U.K.

4.6.2. The compatibility of the replacement pollution control device with the NO _x control measures shall be demonstrated by using the procedures described in Annex XIII to this Regulation, for replacement pollution control devices intended to be fitted to engines or vehicles type-approved in accordance with Regulation (EC) No 595/2009 and this Regulation. U.K.

4.6.3. The provisions in UN/ECE Regulation No 49 applicable to components other than pollution control devices shall not apply. U.K.

4.6.4. The replacement pollution control device manufacturer may use the same preconditioning and test procedure as used during the original type-approval. In that case, the approval authority which granted original type-approval of an engine of a vehicle shall provide, on request and on a non-discriminatory basis, an information document presented as an appendix to the Information Document provided for in Appendix 4 to Annex I, which contains the number and type of preconditioning cycles and the type of test cycle used by the original equipment manufacturer for NO _x control measures testing of the pollution control device. U.K.

4.6.5. Point 4.5.5 shall apply to NO _x control measures monitored by the OBD system.] U.K.