JJG 688-2017
Verification Regulations for Automobile Emission Gas Tester (English Version)

Standard No.

JJG 688-2017

Language

Chinese, Available in English version

Release Date

2018

Published By

National Metrological Verification Regulations of the People's Republic of China

Latest

JJG 688-2017

Replace

JJG 688-2007

JJG 688-2017 history

• 2018 JJG 688-2017 Verification Regulations for Automobile Emission Gas Tester
• 2007 JJG 688-2007 Vehicle Exhaust Emissions Measuring Instruments
• 1990 JJG 688-1990 Verification Regulation of Vehicle Exhaust Emission Measuring Instruments