What is the difference between China 6a and China 6b?
1 Answers
The differences between China 6a and China 6b are: 1. Different carbon monoxide emission limits: China 6a must not exceed 700 mg per kilometer; China 6b must not exceed 500 mg per kilometer. 2. Different non-methane hydrocarbon emission limits: China 6a must not exceed 68 mg per kilometer; China 6b must not exceed 35 mg per kilometer. 3. Different nitrogen oxide emission limits: China 6a must not exceed 60 mg per kilometer; China 6b must not exceed 60 mg per kilometer. 4. Different PM particulate matter emission limits: China 6a must not exceed 4.5 mg per kilometer; China 6b must not exceed 3 mg per kilometer.