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See Chinese contents: HJ 438-2008 HJ 438-2008: Durability of Emission Control Systems of compression ignition and gas fuelled positive ignition engines of vehicles
This Standard specifies the durability requirements (including measurement methods) for vehicle adopted with compression ignition engine and that adopted with the spark ignition engine fuelled with natural gas (NG) or liquefied petroleum gas (LPG) as well as emission control system of such engines. This Standard is applicable to the type approval of the emission control system of compression ignition (including gas fuelled positive ignition) engines equipped in M2, M3, N1, N2 and N3 vehicles with design speed greater than 25km/h as well as M1 vehicles with total mass greater than 3500kg. Where N1 and M2 vehicles adopted with compression ignition (including gas fuelled positive ignition) engines meet the durability requirements of.
