KS D ISO 7627-2-2012(2022) 硬质合金-火焰原子吸收光谱法化学分析-第2部分:钙、钾、镁和钠含量0.001%至0.02%(质量分数)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)