GB 664-1993
Chemical Reagent Ferrous Sulfate Heptahydrate (Ferrous Sulfate) (English Version)
- Standard No.
- GB 664-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Agriculture
- Status
- 2011-12
- Replace By
- GB/T 664-2011
- Latest
- GB/T 664-2011
- Replace
- GB 664-1977
- Scope
- This standard specifies the technical requirements, test methods, inspection rules, packaging and signs of the chemical reagent ferrous sulfate heptahydrate. This standard applies to the inspection of chemical reagent ferrous sulfate heptahydrate.
GB 664-1993 history
- 2011 GB/T 664-2011 Chemical reagent—Iron(Ⅱ)sulfate heptahydrate
- 1993 GB 664-1993 Chemical Reagent Ferrous Sulfate Heptahydrate (Ferrous Sulfate)
- 0000 GB 664-1977
GB 664-1993 Chemical Reagent Ferrous Sulfate Heptahydrate (Ferrous Sulfate) was changed to GB/T 664-2011 Chemical reagent—Iron(Ⅱ)sulfate heptahydrate.
