- Standard No.
- GB 223.44-1985
- 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 223.43-1994
- Lastest
-
GB/T 223.43-2008
GB 223.44-1985 history
- 2008 GB/T 223.43-2008 Iron,steel and alloy.Determination of tungsten content.Gravimetric method and spectrophotometric method
- 1994 GB/T 223.43-1994 Methods for chemical analysis of iron, steel and alloy. Determination of tungsten content
- 1985 GB 223.44-1985 Methods for chemical analysis of iron,steel and alloy--The tetraphenylarsonium chloride-thiocyanate-trichloromethane extraction photometric method for the determination of tungsten content
GB 223.44-1985 Methods for chemical analysis of iron,steel and alloy--The tetraphenylarsonium chloride-thiocyanate-trichloromethane extraction photometric method for the determination of tungsten content was changed to GB/T 223.43-1994 Methods for chemical analysis of iron, steel and alloy. Determination of tungsten content.