本方法适用于0.1%至12%（m/m）之间镁含量的测定。规定了方法的原理和程序、试剂、仪器、取样、结果表达和试验报告。

The method is applicable to the determination of magnesium contents between 0,1 and 12 % (m/m). Specifies principle and procedure of the method, the reagents, apparatus, sampling, expression of results and test report.