This standard applies to the determination of oxygen content in tungsten. Measuring range: 0.0005 ~ 0.80%.
GB/T 4324.25-1984 history
2012GB/T 4324.25-2012 Methods for chemical analysis of tungsten.Part 25:Determination of oxygen content.Pulse heating inert gas fusion -infrared absorption method
1984GB/T 4324.25-1984 Methods for chemical analysis of tungsten--The inert gas fusion-coulometric titration method for the determination of oxygen content