GB/T 4698.21-2019

Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 21: Determination of manganese, chromium, nickel, aluminum, molybdenum, tin, vanadium, yttrium, copper and zirconium content—Atomic emission spectrometry

海绵钛、钛及钛合金化学分析方法 第21部分：锰、铬、镍、铝、钼、锡、钒、钇、铜、锆量的测定 原子发射光谱法