What are the vehicle inspection exhaust emission standards?

1 Answers
McAdriana
07/29/25 11:11pm
Vehicle inspection exhaust emission standards: Carbon monoxide: A (700mg/km); B (500mg/km); Non-methane hydrocarbons: A (68mg/km); B (35mg/km); Nitrogen oxides: A (60mg/km); B (35mg/km); PM particulate matter: A (4.5mg/km); B (3mg/km). The general process for vehicle exhaust emission testing: 1. Information entry: The computer enters information, registers vehicle details, and assigns an inspection line based on vehicle characteristics. This process is automatically completed by the computer. 2. Designated inspection line: The dispatcher directs staff to drive the vehicle to the designated inspection line. Supervisors do not have the authority to change the inspection line. 3. Confirmation of inspection line: The control room verifies whether the vehicle has entered the correct inspection line. Without confirmation, the next step cannot proceed. 4. Exhaust emission testing: The inspector follows the prompts on the computer screen to perform the test. Correct operation is required for a successful test. The test results are compared with standard values and then uploaded to the server by the system. 5. Payment: Finally, payment is made at the environmental inspection fee counter. If the vehicle fails the test, it must be rectified and retested. Vehicles that pass the test are issued an environmental label.
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