What does the China 6b standard mean?

[DeLuke]

China 6b standard refers to: 1. The requirement that carbon monoxide emissions per kilometer driven do not exceed 500 milligrams; 2. The requirement that non-methane hydrocarbon emissions per kilometer driven do not exceed 35 milligrams; 3. The requirement that nitrogen oxide emissions per kilometer driven do not exceed 35 milligrams; 4. The requirement that PM fine particulate matter emissions per kilometer driven do not exceed 3 milligrams. Methods to check a vehicle's emission standard include: 1. Checking the vehicle's environmental protection compliance label; 2. Reviewing the initial page of the vehicle's certification document; 3. Estimating the vehicle's emission standard based on its manufacturing year; 4. Using the original or a copy of the vehicle registration certificate to inquire at the local vehicle management office.