JJG 722-1991
Varification Regulation of Standard Digital Clock (English Version)
- Standard No.
- JJG 722-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2018-08
- Replace By
- JJG 722-2018
- Latest
- JJG 722-2018
JJG 722-1991 history
- 2018 JJG 722-2018 Standard Digital Clocks
- 1991 JJG 722-1991 Varification Regulation of Standard Digital Clock
