What does National V1 represent?
2 Answers
National V1 represents the automotive emission standard with a sulfur content limit of 50mg per kilogram. Automotive emission standards refer to regulations on the content of harmful gases emitted from vehicle exhaust, including carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, soot, etc. The European standard is the automotive emission standard referenced by China. Currently, domestically produced new vehicles will indicate the European standard achieved by their engine exhaust emissions. The European standard is jointly implemented by the emission regulations of the European Economic Commission (ECE) and the emission directives of the European Economic Community (EEC). The EEC is the European Union (EU). The emission regulations are voluntarily recognized by ECE participating countries, while the emission directives are mandatory for EEC or EU participating countries.
I've worked in the automotive repair frontline for over a decade and often get asked what China V1 represents. It actually refers to China's National Phase V Motor Vehicle Pollutant Emission Standards, commonly known as the China 5 standard. This standard was fully implemented around 2017, with a key focus on limiting pollutants in exhaust emissions, requiring significant reductions in nitrogen oxides and particulate matter concentrations. To comply with China 5, vehicles must upgrade their engine systems, fuel injection, and exhaust treatment devices, with components like three-way catalytic converters and DPF particulate filters becoming mandatory. This standard has had a major impact, especially restricting older vehicles from operating in major cities like Beijing, Shanghai, Guangzhou, and Shenzhen. During annual inspections, vehicles exceeding the limits face significant challenges. I recommend owners pay more attention to emission-related components during regular maintenance, as periodic checks can prevent major issues. Overall, the China 5 standard has improved air quality and environmental protection levels, helping to reduce smog problems.
