GB 657-1993
Chemical Reagent Ammonium Molybdate Tetrahydrate (Ammonium Molybdate) (English Version)
- Standard No.
- GB 657-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Agriculture
- Status
- 2011-12
- Replace By
- GB/T 657-2011
- Latest
- GB/T 657-2011
- Replace
- GB 657-1979
- Scope
- This standard stipulates the technical requirements, test methods, inspection rules, packaging and marking of chemical reagent tetrahydrate phase acid. This standard applies to the inspection of the chemical reagent molybdate tetrahydrate.
GB 657-1993 history
- 2011 GB/T 657-2011 Chemical reagent.Hexaammonium heptamolybdata tetrahydrate
- 1993 GB 657-1993 Chemical Reagent Ammonium Molybdate Tetrahydrate (Ammonium Molybdate)
- 0000 GB 657-1979
GB 657-1993 Chemical Reagent Ammonium Molybdate Tetrahydrate (Ammonium Molybdate) was changed to GB/T 657-2011 Chemical reagent.Hexaammonium heptamolybdata tetrahydrate.
