JJG 757-2007
Ionometers (English Version)
- Standard No.
- JJG 757-2007
- Language
- Chinese, Available in English version
- Release Date
- 2007
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2019-06
- Replace By
- JJG 757-2018
- Latest
- JJG 757-2018
- Replace
- JJG 822-1993 JJG 757-1991
- Scope
- This procedure is applicable to the initial calibration, subsequent calibration and in-use inspection of general ion meters and special ion meters that use the electrode potential method to measure ion activity. Ion meter type evaluation and measurement performance tests related to prototype testing can also be conducted with reference to this procedure.
JJG 757-2007 history
- 2019 JJG 757-2018 Laboratory ion meter verification regulations
- 2007 JJG 757-2007 Ionometers
- 1991 JJG 757-1991 Verification Regulation for Ionometer
JJG 757-2007 Ionometers has been changed from JJG 822-1993 Verification Regulation for Sodium Ionometer.
