BS 6200-3.33.1:1992 Sampling and analysis of iron, steel and other ferrous metals - Methods of analysis - Determination of tungsten - Steel: gravimetric method
Applicable to steels containing 3% to 30% tungsten, but not to steels containing niobium and/or tantalum.
BS 6200-3.33.1:1992 history
1992BS 6200-3.33.1:1992 Sampling and analysis of iron, steel and other ferrous metals - Methods of analysis - Determination of tungsten - Steel: gravimetric method