JJG 291-1999
Verification Regulation of Film Electrode Dissolved Oxygen Meter (English Version)
- Standard No.
- JJG 291-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- National Metrological Verification Regulations of the People's Republic of China
- Status
- 2009-06
- Replace By
- JJG 291-2008
- Latest
- JJG 291-2018
JJG 291-1999 history
- 2018 JJG 291-2018 Dissolved Oxygen Meters
- 2008 JJG 291-2008 Verification Regulation of Dissolved Oxygen Meter with Covered-Membrane-Electrode
- 1999 JJG 291-1999 Verification Regulation of Film Electrode Dissolved Oxygen Meter
