Chinese Standard: JJG 688-2025

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Verification Regulation of Vehicle Exhaust Emissions Measuring Instruments

Standard in brief
Scope of Application：  
本规程适用于汽车排放气体测试仪(以下简称测试仪)的首次检定、后续检定和使用中检查。测试仪用于测定下列一种或多种组分的体积分数，测试仪对不同组分体积分数的最小测量范围应满足HC：(0～2 000)×10-6 、CO：(000～500)×10-2 、CO2：(00～160)×10-2 、NO：(0～4 000)×10-6 、O2：(00～210)×10-2 、NO2：(0～400)×10-6。

Basic information
Standard No：JJG 688-2025
Standard Name：汽车排放气体测试仪检定规程
English Name：Verification Regulation of Vehicle Exhaust Emissions Measuring Instruments
Standard Status：现行
Release Date：2017-11-20
Effective Date：2026-03-11
Language of Publication：中文简体

Related Standards
Referenced Standards：GB 18285-2018,OIML R99-1&2

Publication Information
Number of pages：32
Number of words：35 K
Format：大16
Edition：2
Color Pages：0
Electronic Version：Yes
Color Images：No
Print Publication Date：2025-12-01

Standard Revision Information
Has Amendment：Yes
Amendment Note：有第1号修改单

Other Information
Application Dept：国家市场监督管理总局
Standard Type：JJ
Standard Attribute：JJG
Other Standard Number：688
Drafter：闫军、孙磐、王军平
Drafting Organization：内蒙古自治区计量测试研究院、河北省计量监督检测研究院
Management Organization：全国法制计量管理计量技术委员会机动车检验检测分技术委员会