- Standard No.
- GB 1647-1979
- Language
- Chinese, Available in English version
- Release Date
- 1979
- Published By
- Professional Standard - Agriculture
- Latest
-
GB 1647-1979
- Replace By
-
HG 2682-1995
- Scope
- This standard applies to hydrosulfite (low sodium sulfite) prepared by the action of zinc powder and sulfur dioxide, which is mainly used in the food industry and also in the pharmaceutical industry.
GB 1647-1979 history
GB 1647-1979 Sulfur powder for food industry was changed to HG 2682-1995 Food additive sodium dithionite (sodium hydrosulfite).