SD 311-1989
(English Version)
- Standard No.
- SD 311-1989
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Hydroelectric Power
- Status
- 2005-06
- Replace By
- DL/T 920-2005
- Latest
- DL/T 920-2019
SD 311-1989 history
- 2019 DL/T 920-2019 Determination of air, carbon tetrafluoride, hexafluoroethane and octafluoropropane in sulfur hexafluoride gas by gas chromatography
- 2005 DL/T 920-2005 Determination of air and carbon tetrafluoride content in sulphur hexafluoride by gas chromatography method
- 1970 SD 311-1989
SD 311-1989 was changed to DL/T 920-2005 Determination of air and carbon tetrafluoride content in sulphur hexafluoride by gas chromatography method.
