- Standard No.
- GB/T 6150.7-1985
- Language
- Chinese
- Release Date
- 1985
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
-
GB/T 6150.5-2008
-
GB/T 6150.17-2008
- Lastest
-
GB/T 6150.17-2022
- Scope
- This standard applies to the determination of calcium content in wolframite concentrate. Measuring range: 0.05 to 1.00%.
GB/T 6150.7-1985 history
- 2022 GB/T 6150.17-2022 Methods for chemical analysis of tungsten concentrates—Part 17:Determination of antimony content—Atomic fluorescence spectrometry
- 2008 GB/T 6150.5-2008 Methods for chemical analysis of tungsten concentrates.Determination of calcium content .EDTA volumetric method and flame atomic absorption spectrometric method
- 1985 GB/T 6150.7-1985 Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of calcium content
GB/T 6150.7-1985 Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of calcium content was changed to GB/T 6150.5-2008 Methods for chemical analysis of tungsten concentrates.Determination of calcium content .EDTA volumetric method and flame atomic absorption spectrometric method.