GB/T 8188-2003 in English

《GB/T 8188-2003内燃机 排放术语和定义》由TC177（全国内燃机标准化技术委员会）归口，主管部门为中国机械工业联合会。
本标准使内燃机的术语及其命名标准化，以便在技术讨论、工程比较和编制技术文件时有更确切的理解。本标准适用于对各种发动机、车辆排放物和净化装置的命名。

Scope

The purpose of formulating this standard is to standardize the terms and their nomenclature, so as to have a more accurate understanding in technical discussions, engineering comparisons and preparation of technical documents. , This standard applies to the naming of various engine and vehicle emissions and purification devices. For simplicity, modifiers may be omitted in some cases. But sometimes in order to make the meaning clear and easy to understand, it is better to add these modifiers.