规定了一种火焰原子吸收光谱法，用于测定非合金钢和低合金钢中0.002%至2.0%的铬含量。该程序涉及在酸中溶解试验部分，并测定铬谱线的原子吸收，在火焰原子吸收光谱仪中在357.9 nm或425.4 nm处测量。本标准与ISO 10138:1991相同，并根据ISO 10138:1991复制。

Specifies a flame atomic absorption spectrometric method for the determination of chromium content between 0.002 percent and 2.0 percent in non-alloy and low alloy steel. The procedure involves dissolution of a test portion in acid and determination of the atomic absorption of the chromium spectral line, measured at either 357.9 nm or 425.4 nm in a flame atomic absorption spectrometer. This Standard is identical with and reproduced from ISO 10138:1991.