Determination of tungsten
Determination of tungsten, Total:16 items.
The international standard classification for "Determination of tungsten" includes: Other non-ferrous metals and their alloys , Metalliferous minerals , Cadmium, cobalt and their alloys , Workplace atmospheres , Chemical analysis of metals , Tobacco, tobacco products and related equipment , Materials for aerospace construction .
The Chinese standard classification for "Determination of tungsten" includes: Rare refractory metals and their compounds , Rare metals and their alloys analysis method , Labor sanitation , Precious metals and its alloy analysis method , Tobacco .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB 223.43-1985 Methods for chemical analysis of iron,steel and alloy--The cinchonine gravimetric method for the determination of tungsten content
- 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 13747.10-1992 and zirconium alloys - Determination of tungsten content - Thiocyanate spectrophotometric method
- GB/T 7731.1-1987 Methods for chemical analysis of ferrotungsten--The cinchonine gravimetric method for the determination of tungsten content
- GB/T 14352.1-1993 Methods for chemical analysis of tungsten ores and molybdenum ores
Occupational Health Standard of the People's Republic of China
- GBZ/T 160.23-2004 Methods for determination of tungsten and its compounds in the air of workplace
Professional Standard - Non-ferrous Metal
- YS/T 372.17-2006 Methods for elementary analysis of precious alloy -- Determination of tungsten and rhenium content -- Tungstic acid gravimetry and thiourea spectrophotometry
Professional Standard - Tobacco
- YC/T 247-2008 Tobacco and tobacco products - Determination of nicotine purity - Gravimetric method using tungstosilicic acid
Professional Standard - Aviation
- HB 5220.32-2008 Methods for Chemical Analysis of Superalloys - Part 32: Determination of Tungsten Content by Thiocyanate Photometric Method
- HB 5220.31-2008 Methods for Chemical Analysis of Superalloys - Part 31: Determination of Tungsten Content by Cinchonine-Ethylnaphthalene Quinoline Gravimetric Method
CZ-CSN
- CSN 42 0641 Cast.8-1984 Chemical analysis of non-ferrous metals and alloys. Nickel alloys. Determination of tungsten by the gravimetric method
- CSN 42 0643 Cast.9-1972 Chemical analysis of alloyed nickel. Determination of tungsten by gravimetric method
Korean Agency for Technology and Standards (KATS)
- KS D 1812-2019 Iron and steel — Methods for determination of tungsten content
- KS D ISO 7693-2002(2022) Ferrotungsten－Determination of tungsten content－Cinchonine gravimetric method
- KS D ISO 7693-2002(2017) Ferrotungsten－Determination of tungsten content－Cinchonine gravimetric method
GSO
- GSO ISO 7693:2015 Ferrotungsten -- Determination of tungsten content -- Cinchonine gravimetric method
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