How to Distinguish Between China 5 and China 6 Emission Standards?

[LeBeau]

The differences between China 5 and China 6 emission standards are as follows: 1. The limit requirements of the "China 6 standard" are about 40% to 50% stricter than those of "China 5". 2. "China 6" adopts a fuel-neutral principle, meaning that regardless of the fuel type, the emission limits are the same. In the previous "China 5" stage, the emission standards for diesel and gasoline vehicles were different. 3. Compared to China 5, the China 6 standard reduces nitrogen oxides by 77% and particulate matter by 67%, introduces a limit requirement for particle number (PN), and tightens the durability requirements for emission control devices and the related requirements for on-board diagnostic systems (OBD). 4. China 6 proposes stricter compliance supervision requirements, including type testing and information disclosure, production consistency checks, new vehicle inspections, in-use vehicle compliance checks, etc., and simplifies the compliance determination method. 5. The emission standards for the "China 6a" stage are basically the same as those for "China 5", only taking the strictest values from the "China 5" emission requirements.