regulation 7(5)
SCHEDULE 5E+W+S(Requirements relating to control instruments)
Separate control instrument (Clause 2.8.3.1 of Part 1 of OIML R 106)E+W+S
A control instrument capable of being used to determine the mass of each reference wagon when stationary and uncoupled shall be available for in-motion tests. The error of that instrument shall not be greater than either of the following values:
(a)one third of the appropriate maximum permissible error for in-motion weighing in clause 2.8.2 and Table 1 (set out in Schedule 6) if the control instrument is verified immediately prior to the in-motion tests;
(b)one-fifth of the maximum permissible error if the control instrument is verified at any other time.
An automatic rail-weighbridge constructed only for partial weighing of two-axle wagons may be used as the control instrument provided that the alignment calibration in Annex B (of Part 1 of OIML R 106) has been successfully applied.
Integral control instrument (Clause 2.8.3.2 of Part 1 of OIML R 106)E+W+S
An automatic rail-weighbridge under test may be used as the control instrument provided that it meets the following requirements:
• it shall have an appropriate scale interval or scale interval for stationary load in accordance with the requirements of clause 2.3 or clause 2.10.2 of Part 1 of OIML R 106, as the case may be, which are respectively set out in Schedule 6 and Schedule 3.
• it shall comply with the requirements in clauses 2.8.1.1 to 2.8.1.6 of Part 1 of OIML R 106.
• it shall comply with the requirements in clause 2.8.3.1 of Part 1 of OIML R 106 relating to separate control instruments.
An automatic rail-weighbridge constructed only for partial weighing of two-axle wagons may be used as the control instrument provided that the alignment calibration in Annex B (of Part 1 of OIML R 106) has been successfully applied.
In the case of both a separate control instrument and an integral control instrument, the maximum permissible errors shall comply with the requirements of clause 2.2.2 of Part 1 of OIML R 106 which is set out in Schedule 6.