JJG 151-1991
Verification Regulation of Metal Vickers Hardness Tester (English Version)
- Standard No.
- JJG 151-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2007-06
- Replace By
- JJG 151-2006
- Latest
- JJG 151-2020
JJG 151-1991 history
- 1970 JJG 151-2020 Falling Ball Resilience Modulus Tester
- 2006 JJG 151-2006 Verification Regulation of Metallic Vickers Hardness Testers
- 1991 JJG 151-1991 Verification Regulation of Metal Vickers Hardness Tester
