GB/T 13176.3-1991
Washing powders—Determination of active oxygen conte-nt—Titrimetric method (English Version)
- Standard No.
- GB/T 13176.3-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2008-12
- Replace By
- GB/T 13173-2008
- Latest
- GB/T 13173-2021
- Scope
- This standard specifies a method for the determination of active oxygen content in commercial washing powder. This standard is applicable to the determination of peroxygen hydrates, such as sodium perborate and sodium percarbonate; it is not applicable to the analysis of washing powder containing products that can react with acidic permanganate in addition to peroxygen hydrates under analytical conditions . This method still applies when it contains ethylenediaminetetraacetic acid (EDTA) or other similar chelating agents, provided that the concentration does not exceed 1% (m/m).
GB/T 13176.3-1991 history
- 2021 GB/T 13173-2021 Surface active agents—Test methods for detergents
- 2008 GB/T 13173-2008 Surface active agents.Detergents.Testing methods
- 1991 GB/T 13176.3-1991 Washing powders—Determination of active oxygen conte-nt—Titrimetric method
GB/T 13176.3-1991 Washing powders—Determination of active oxygen conte-nt—Titrimetric method was changed to GB/T 13173-2008 Surface active agents.Detergents.Testing methods.
