GB/T 15076.10-2019 Methods for chemical analysis of tantalum and niobium—Part 10:Determination of iron,nickel,chromium,titanium, zirconium,aluminum and manganese contents in niobium—Direct current arc atomic emission spectrometry (English Version)
2019GB/T 15076.10-2019 Methods for chemical analysis of tantalum and niobium—Part 10:Determination of iron,nickel,chromium,titanium, zirconium,aluminum and manganese contents in niobium—Direct current arc atomic emission spectrometry
1994GB/T 15076.10-1994 Methods for chemical analysis of tantalum and niobium-Determination of iron,nickel,chromium,titanium,zirconium,aluminum and manganese contents in niobium