内容简介
JJF（冀）175-2020柴油车氮氧化物（NOx）检测仪校准规范
Calibration Specification for the Diesel VehicleNitrogen Oxides(NOx)Measuring Instrument
2020-09-01发布
2020-11-30 实施
目录
引 言.............................................................................................................................1
1 范围......................................................................................................................... 1
2 引用文件................................................................................................................. 1
3 术语和计量单位..................................................................................................... 1
4 概述......................................................................................................................... 1
5 计量特性................................................................................................................. 1
6 校准条件................................................................................................................. 2
7 校准项目和校准方法............................................................................................. 3
8 校准结果的表达..................................................................................................... 6
9 复校时间间隔......................................................................................................... 6
附录 A 标准气体及其浓度要求................................................................................ 6
附录 B 采用臭氧发生器进行转化率校准的方法.................................................... 8
附录 C 校准证书(内页)内容.................................................................................. 10
附录 D 氮氧化物（NOX）检测仪 NO 浓度测量不确定度评定的实例................... 12