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Tungsten trioxide
Tungsten trioxide, Total:13 items.
In the international standard classification, Tungsten trioxide involves: Non-ferrous metals, Metalliferous minerals, Optics and optical measurements.
Professional Standard - Commodity Inspection, Tungsten trioxide
- SN/T 0951-2000 Method for the determination of tungsten trioxide content in ammonium paratungstate for import export
- SN/T 0951-2010 Determination of tungsten trioxide content in ammonium paratungstate for import and export
- SN/T 3012-2011 Determination of tungsten trioxide in tungsten ores.X-ray fluorescence spectrometry
Group Standards of the People's Republic of China, Tungsten trioxide
- T/GZNFS 001.1-2019 Methods for Chemical Analysis of Tungsten Slag Part 1: Determination of Tungsten Trioxide Content
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Tungsten trioxide
- GB/T 6150.1-1985 Methods for chemical analysis of tungsten concentrates--The ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content
- GB/T 1828-1979 Determination of tungsten trioxide content in tin concentrates--Thiocyanate photometric method
- GB/T 6150.1-2008 Methods for chemical analysis of tungsten concentrates.Determination of tungsten trioxide content.The ammonium tungstate igniting gravimetric method
- GB/T 15072.17-2008 Test method of precious metal alloys.Determination of tungsten contents for platinum alloys.Tungstic acid gravimetry
- GB/T 26019-2010 Methods for chemical analysis of high impurity tungsten mineral.Determination of tungsten trioxide content.Twice separation and igniting gravimetric method
- GB/T 1819.9-2004 Methods for chemical analysis of tin concentrates Determination of tungsten trioxide content-The thiocyanate spectrophotometric method
Professional Standard - Non-ferrous Metal, Tungsten trioxide
- YS/T 240.4-2007 Methods for chemical analysis of bismuth concentrate. Determination of tungsten trioxide content. Thiocyanate spectrophotometric method
- YS/T 358.4-2011 Methods for chemical analysis of tantalite,columbite concentrate.Part 4:Determination of tungsten trioxide content.Thiocyanate spectrophotometric method
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会, Tungsten trioxide
- GB/T 1819.9-2017 Methods for chemical analysis of tin concentrates—Part 9:Determination of tungsten trioxide content—The thiocyanate spectrophotometric method