According to emission standards, the world's automobile emission standards are currently in line with each other, and are divided into three major systems: European, American and Japanese standards. European standard testing requirements are relatively broad, and it is the automo

2025/05/2614:58:34 hotcomm 1207

is divided into three major systems of European, American, and Japanese standards. European standard testing requirements are relatively broad, and it is the automobile exhaust emission system that most developing countries use, while Japan and the United States are the strictest. Most Chinese automobiles have introduced production technology from Europe, so they generally adopt the European standard system, and their exhaust emission standards are also extended to the European standard system.

National III and European III emission standards

This mainly refers to the HC emission value below 0.2g/km, CO emission value below 2.2g/km, NOx emission value below 0.15g/km, and there is no PM requirement.

National IV and European IV emission standards

This mainly refers to the HC emission value below 0.1g/km, CO emission value below 1.0g/km, NOx emission value below 0.08g/km, and there is no PM requirement.

National V and European V emission standards

This mainly refers to the HC emission value below 0.1g/km, CO emission value below 1.0g/km, NOx emission value below 0.06g/km, and PM requirements, below 0.005g/km.

According to emission standards, the world's automobile emission standards are currently in line with each other, and are divided into three major systems: European, American and Japanese standards. European standard testing requirements are relatively broad, and it is the automo - DayDayNews

or above is an introduction to where to see the difference between the three countries, four countries and five cars. I hope it will be helpful to everyone.

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