2008HB 5220.16-2008 Methods for chemical analysis of superalloys. Part 16: Determination of vanadium content by ammonium ferrous sulfate volumetric method
1995HB 5220.16-1995 Method for Chemical Analysis of Superalloys - Ammonium Ferrous Sulfate Volumetric Method for Determination of Vanadium Content
1982HB 5220.16-1982 Determination of Tungsten Amount in Superalloy