HJ 857-2017 (English Version) PDF

Scope: This standard specifies the on-board measurement methods and technical requirements for exhaust pollutants from heavy-duty diesel vehicles and gas fuel vehicles. It is suitable for the emission compliance inspection and in-use compliance inspection of new production vehicles of heavy-duty diesel vehicles and gas fuel vehicles that meet the fifth stage standard of GB 17691-2005. This standard applies to M2, M3, N2 (but not including low-speed trucks) and N3 categories equipped with compression ignition and gas fuel ignition engines with a design speed greater than 25km/h, as well as M1 category vehicle exhaust pollutants with a total mass greater than 3500kg. Emission measurement.

HJ 857-2017 Referenced Document

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 18352.6-2016 Limits and measurement methods for emissions from light-duty vehicles（CHINA 6）
GB/T 12534 Motor vehicles--General rules of road test method
HJ 437-2008 Technical specification for on - board diagnostic (OBD) system of compression ignition and gas fuelled positive ignition engines of vehicles
HJ 438-2008 Durability of emission control systems of compression ignition and gas fuelled positive ignition engines of vehicles
HJ 689-2014 Limits and measurement methods for exhaust pollutants from diesel engines of urban vehicles (WHTC)

2017 HJ 857-2017 Measurement method and technical specification for PEMS test of exhaust pollutants from heavy-duty diesel and gas fuelled vehicles