- Standard No.
- GB/T 6150.14-1985
- 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 6150.12-2008
- Lastest
-
GB/T 6150.12-2008
- Scope
- This standard applies to the determination of the amount of silica in tungsten concentrate. Measuring range: 0.50 to 10.00%.
GB/T 6150.14-1985 history
- 2008 GB/T 6150.12-2008 Methods for chemical analysis of tungsten concentrates.Determination of silicon dioxide content.The silicomolybdenum blue spectrophotometry and the gravimetry
- 1985 GB/T 6150.14-1985 Methods for chemical analysis of tungsten concentrates--The molybdenum blue photometric method for the determination of silicon dioxide content
GB/T 6150.14-1985 Methods for chemical analysis of tungsten concentrates--The molybdenum blue photometric method for the determination of silicon dioxide content was changed to GB/T 6150.12-2008 Methods for chemical analysis of tungsten concentrates.Determination of silicon dioxide content.The silicomolybdenum blue spectrophotometry and the gravimetry.