JJF 1339-1990
4πβ(LS)-γ conforms to the technical specifications of the activity benchmark operation (English Version)
- Standard No.
- JJF 1339-1990
- Language
- Chinese, Available in English version
- Published By
- National Metrological Technical Specifications of the People's Republic of China
- Status
- 2012-06
- Replace By
- JJF 1339-2012
- Latest
- JJF 1339-2012
JJF 1339-1990 history
- 2012 JJF 1339-2012 Calibration Specification for Electro-acoustical Measurement Instruments
- 1970 JJF 1339-1990 4πβ(LS)-γ conforms to the technical specifications of the activity benchmark operation
