HJ/T 396-2007 in English

本标准规定了在用点燃式发动机汽车瞬态工况法排气污染物测量的主要设备——底盘测功机、排气分析仪、流量计及取样系统的规格、功能和性能的技术要求及测试方法，计算机控制软件功能的基本要求；检测站日常设备检验、检测站现场安装设备检验和型式核准设备检验的项目要求和测试方法。
本标准适用于在用点燃式发动机汽车瞬态工况法排气污染物测量设备的生产、使用和型式核准检验。

Scope

This standard specifies the technical requirements for the specifications, functions and performance of chassis dynamometers, exhaust analyzers, flow meters and sampling systems that are the main equipment for measuring exhaust pollutants using the transient operating condition method of ignition engine vehicles. Test methods, basic requirements for computer control software functions; project requirements and test methods for daily equipment inspection of testing stations, on-site installation equipment inspection of testing stations and type approval equipment inspection. This standard applies to the production, use and type approval inspection of exhaust pollutant measurement equipment using the transient operating condition method for ignition engine vehicles. This standard is promulgated for the first time.