How to Write China National Standards I, II, III, IV, V, and VI for Automobiles?
2 Answers
National I, National II, National III, National IV, National V, National VI. The following is related content about automobile emission standards: 1. Introduction: Automobiles are a mobile source of pollution, emitting major pollutants such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM), all of which are substances that pollute the environment and need to be controlled. The sources of automobile pollutant emissions come from the exhaust pipe, crankcase, and fuel. 2. Establishment: Automobile emission standards are formulated to control the emission of automobile pollutants. To curb the generation of these harmful gases and encourage automobile manufacturers to improve their products to reduce the source of these harmful gases, both Europe and the United States have established relevant automobile emission standards. Automobile emission standards are continuously supplemented, refined, and tightened with the increase in automobile ownership and the worsening of the human environment.
When encountering issues related to Chinese automotive national standards, from an experienced driver's perspective, those 'one, two, three, four, five, six' typically refer to the serial numbers of different standards. In actual writing, they should be expressed as Arabic numerals 123456, prefixed with GB or GB/T to indicate national standards. For example, the format GB/T 18344 represents automotive maintenance standards, followed by the year such as the 2020 version. This writing method is quite common in the industry, ensuring safety and standardization. Writing the wrong Chinese characters might mislead mechanics. I believe car owners should learn more about these basics, as national standards are crucial to vehicle performance and safe driving. When repairing cars or checking information, I always memorize the numerical codes directly—simple and efficient. This avoids confusion and allows for quick reference to information.
