This standard applies to the determination of carbon content in tungsten. Measuring range: 0.0005 ~ 0.50%.
GB/T 4324.27-1984 history
2012GB/T 4324.27-2012 Methods for chemical analysis of tungsten.Part 27:Determination of carbon content.High frequency combustion -infrared absorption method
1984GB/T 4324.27-1984 Methods for chemical analysis of tungsten--The combustion-coulometric titration method for the determination of carbon content