JJF 1248-1990
Superficial Rockwell hardness secondary benchmark operation technical specification (English Version)
- Standard No.
- JJF 1248-1990
- Language
- Chinese, Available in English version
- Published By
- National Metrological Technical Specifications of the People's Republic of China
- Status
- 2010-08
- Replace By
- JJF 1248-2010
- Latest
- JJF 1248-2020
JJF 1248-1990 history
- 2020 JJF 1248-2020 Calibration Specification for Channel Vehicle Radioactivity Monitoring Systems
- 2010 JJF 1248-2010 Calibration Specification for the Channel Vehicle Radioactivity Monitoring Systems
- 1970 JJF 1248-1990 Superficial Rockwell hardness secondary benchmark operation technical specification
