What is the China VI B standard?

[DeTucker]

China VI B is the national sixth-stage motor vehicle pollutant emission standard. The following is a detailed introduction to the China VI emission standard: 1. Difference between China VI A and VI B: Based on the different olefin content, it can be divided into "China VI A" and "China VI B". China VI B mainly tests the technical R&D capabilities and technology reserves of automakers. 2. Difference between China V and China VI: Compared to China V standard gasoline and diesel, China VI diesel reduces the mass fraction of polycyclic aromatic hydrocarbons from no more than 11% to no more than 7%, and adds technical requirements and testing methods for the total pollutant content in vehicle diesel. At the same time, China VI gasoline can achieve a 10% reduction in particulate matter emissions, a 42% decrease in nitrogen oxide emissions, a 50% reduction in carbon monoxide emissions, and a 50% drop in the emission limits for total hydrocarbons and non-methane hydrocarbons.