GB/T 15076.5-2017 Methods for chemical analysis of tantalum and niobium—Part5:Determination of molybdenum and tungsten contents—Inductively coupled plasma atomic emission spectrometry
2017GB/T 15076.5-2017 Methods for chemical analysis of tantalum and niobium—Part5:Determination of molybdenum and tungsten contents—Inductively coupled plasma atomic emission spectrometry
2008GB/T 15076.15-2008 Method for chemical analysis of tantalum and niobium.Determination of hydrogen content
1994GB/T 15076.15-1994 Methods for chemical analysis of tantalum and niobium-Determination of hydrogen content