GB/T 22402-2008
Photography.Processing chemicals.Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate (English Version)
- Standard No.
- GB/T 22402-2008
- Language
- Chinese, Available in English version
- Release Date
- 2008
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 22402-2008
- Scope
- This standard specifies the purity requirements and test methods for photographic grade anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate.
GB/T 22402-2008 Referenced Document
- GB/T 20432.1-2006 Photography.Photographic-grade chemicals.Test methods.Part 1:General
- GB/T 20432.10-2007 Photography Photographic-grade chemicals Test methods Part 10: Determination of sulfide content
- GB/T 20432.3-2008 Photography.Photographic-grade chemicals.Test methods.Part 3:Determination of matter in ammonium hydroxide solution
- GB/T 20432.5-2007 Photography Photographic-grade chemicals-Test methods- Part 5: Determination of heavy metals and iron content
- GB/T 20432.7-2007 Photography Photographic-grade chemicals Test methods- Part 7: Determination alkalinity or acidity
GB/T 22402-2008 history
- 2008 GB/T 22402-2008 Photography.Processing chemicals.Specifications for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate
