EN 27627-2:1993 硬质金属.用火焰原子吸收光谱法进行化学分析.第2部分:钙,钾,镁和钠含量0.001-0.02 %(m/m)的测定(ISO 7627-2-1983)
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 % (m/m) (ISO 7627-2:1983)