KS D ISO 7627-2-2012 硬质合金.火焰原子吸收光谱法的化学分析.第2部分:含量为0.001%-0.02%(平均克分子)的钙、钾、镁和钠含量的测定
Hardmetals-Chemical analysis by flame atomic absorption spectrometry-Part 2:Determination of calcium, potassium, magnesium and sodium in contents from 0.001 % to 0.02 % (mass fraction)