JJG 989-2004
Grating Micrometers (English Version)
- Standard No.
- JJG 989-2004
- Language
- Chinese, Available in English version
- Release Date
- 2004
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2018-05
- Replace By
- JJF 1682-2017
- Latest
- JJF 1682-2017
JJG 989-2004 history
- 2018 JJF 1682-2017 Calibration specification for grating micrometer
- 2004 JJG 989-2004 Grating Micrometers
JJG 989-2004 Grating Micrometers was changed to JJF 1682-2017 Calibration specification for grating micrometer.
