Chinese Standard: GB/T 4702.7-2016

Chromium metal─Determination of nitrogen content─Distillation-nessler reagent spectrophotometric method

全国生铁及铁合金标准化技术委员会(SAC/TC 318)

GB/T 4702的本部分规定了蒸馏分离-奈斯勒试剂分光光度法测定氮含量。
本部分适用于金属铬中氮含量的测定测定范围(质量分数)：0.002%~0.150%。

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