Methods for chemical analysis of iron,steel and alloy--Extraction separation-chlorophosphonazo mA spectro-photometric method for the determination of the total rare earth content
基本信息
标准号:
GB/T 223.49-1994
名称:
钢铁及合金化学分析方法 萃取分离-偶氮氯膦mA分光光度法测定稀土总量
英文名称:
Methods for chemical analysis of iron,steel and alloy--Extraction separation-chlorophosphonazo mA spectro-photometric method for the determination of the total rare earth content