- Standard No.
- GB/T 6150.7-2008
- 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 6150.7-2008
- Replace
-
GB/T 6150.9-1985
- Scope
- This method specifies the determination method for tantalum and niobium in tungsten concentrate. This method is suitable for the determination of tantalum and niobium in tungsten concentrate. Measuring range: the mass fraction of tantalum pentoxide is 0.020% to 1.00%, and the mass fraction of niobium pentoxide is 0.020% to 1.00%.
GB/T 6150.7-2008 history
- 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 6150.7-2008 Methods for chemical analysis of tungsten concentrates.Determination of tantalum content and niobium content.Inductively coupled plasma emission spectrometry and spectrophotometry has been changed from GB/T 6150.9-1985 Methods for chemical analysis of tungsten concentrates--The chlorosulphophenol S photometric method for the determination niobium content--The butylrhodamine B extraction photometric method for the determinati.