JJG 654-1990
Verification Regulation of Ultrasonic Hardness Testers (English Version)
- Standard No.
- JJG 654-1990
- Language
- Chinese, Available in English version
- Release Date
- 1990
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2014-04
- Replace By
- JJF 1436-2013
- Latest
- JJF 1436-2013
JJG 654-1990 history
- 2013 JJF 1436-2013 Calibration Specification of Ultrasonic Hardness Testers
- 1990 JJG 654-1990 Verification Regulation of Ultrasonic Hardness Testers
JJG 654-1990 Verification Regulation of Ultrasonic Hardness Testers was changed to JJF 1436-2013 Calibration Specification of Ultrasonic Hardness Testers.
