| This standard was formulated for the purpose of implementing Environmental Protection Law of the People's Republic of China and Air Pollution Prevention and Control Law, guaranteeing the quality of emission testing and controlling smoke emission from vehicles with compression ignition and gas fuelled positive ignition engines and improving air quality. This standard stipulates the technical requirements (including measurement methods) over the durability of emission control system of vehicle equipped with compression engine and the compression engine as well as vehicle equipped with ignition engine and the ignition engine fuelled by natural gas (NG) or liquefied petroleum gas (LPG).
This standard is applicable to the type verification over the durability of emission control system of compression (including gas fuelled ignition compression) engine and the OBD system equipped in M2, M3, N1, N2 and N3 type vehicle with the designed speed over 25km/h as well as M1 type vehicle with the total mass over 3500kg. The relevant requirements of this standard can be exempted for N1 and M2 type of vehicle equipped with compression (including gas fuelled ignition compression) engine should such vehicles meet the technical requirements on durability of Limits and Measurement Methods for Emissions from Light-Duty Vehicles (GB18352.3-2005).
This standard is released for the first time. |
