JJG 657-2019
Breath Alcohol Analyzers (English Version)
- Standard No.
- JJG 657-2019
- Language
- Chinese, Available in English version
- Release Date
- 2019
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Latest
- JJG 657-2019
JJG 657-2019 history
- 2019 JJG 657-2019 Breath Alcohol Analyzers
- 2006 JJG 657-2006 Verification Regulation of Detector for Alcoholic Quantity from Breathing-out Gas
- 1990 JJG 657-1990 Verification Regulation of Detector for Alcoholic Quantity from Breathing -out Gas
