JJG 499-1987
Verification Regulation of Precision Dewpoint Hygrometer (English Version)
- Standard No.
- JJG 499-1987
- Language
- Chinese, Available in English version
- Release Date
- 1987
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2004-12
- Replace By
- JJG 499-2004
- Latest
- JJG 499-2021
JJG 499-1987 history
- 2021 JJG 499-2021 Precision Dew Point Hygrometers
- 2004 JJG 499-2004 Precision Dew-point Hygrometers
- 1987 JJG 499-1987 Verification Regulation of Precision Dewpoint Hygrometer
