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ANNEX VIIU.K.VERIFYING THE DURABILITY OF POLLUTION CONTROL DEVICES(TYPE 5 TEST)

2.TECHNICAL REQUIREMENTSU.K.

2.3.1.Vehicles with Positive Ignition EnginesU.K.
2.3.1.7.Required Testing. For calculating deterioration factors at least two Type 1 tests before bench ageing of the emission control hardware and at least two Type 1 tests after the bench-aged emission hardware is reinstalled have to be performed on the test vehicle.U.K.

Additional testing may be conducted by the manufacturer. Calculation of the deterioration factors has to be done according to the calculation method as specified in Paragraph 6 of Annex 9 to UN/ECE Regulation No 83 as amended by this Regulation.