What does the National III standard refer to?

1 Answers
Aubrey
07/29/25 9:37pm
So-called National III standard refers to China's third-stage vehicle emission standards. The National III emission standard primarily specifies: HC emission values below 0.2g/km, CO emission values below 2.3g/km, NOx emission values below 0.15g/km, with no PM requirements. Relevant information about vehicle emission standards is as follows: 1. Introduction: Vehicle emission standards regulate the content of harmful gases emitted from vehicle exhaust, including CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulate matter, soot). 2. Implementation status: Starting from January 1, 2004, Beijing upgraded its vehicle emission standards from Euro I to Euro II, and by 2008, officially implemented the Euro III standard.
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