General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB 20890-2007
Scope
This standard specifies the durability requirements and test methods for the exhaust pollutant emission control system of heavy-duty vehicles. This standard is applicable to the M2, M3, N2 and N3 types with exhaust after-treatment devices and the design speed greater than 25km/h, and the total mass is greater than The type approval and production consistency inspection of 3500kg M1 motor vehicles are used to assess the durability of the exhaust pollutant emission control system. When a motor vehicle using an exhaust after-treatment device undergoes type approval and production consistency inspection according to GB 14762-2002 or GB 17691-2001 Phase II, or GB 17691-2005 Phase III, it shall meet this standard for exhaust pollution. requirements for the durability of emission control systems. Exhaust after-treatment devices that are type-approved as independent technical assemblies can implement this standard.
GB 20890-2007 Referenced Document
GB 14762-2002 Limits and measurement methods for exhaust pollutants from positive ignition(P.I.)engines of vehicles and vehicles equipped with P.Iengines
GB 17691-2001 Limits and measurement methods for exhaust pollutants from compression ignition(C.I.) engines of vehicles
GB 17691-2005 Limits and measurement methods for exhaust pollutants from compression ignition and gas fuelled positive ignition engines of vehicles (Ⅲ,Ⅳ,Ⅴ)
GB 17930 Gasoline for motor vehicles*, 2016-12-23 Update
GB 18047-2000 Compressed natural gas as vehicle fuel