GB/T 223.49-1994 standards english version

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 223.49-1994

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

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The Standardization Administration of the People's Republic of China

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GB Standard Code	GB/T 223.49-1994
Standard Category	China National Standards
GB Standard English Title	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
GB Standard Chinese Title	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
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