GB/T 16484.21-2009
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 16484.21-2009
Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 21: Determination of iron oxide content - 1,10-phenanthroline spectrophotometry 氯化稀土、碳酸轻稀土化学分析方法 第21部分:氧化铁量的测定 1,10-二氮杂菲分光光度法
Issued Date:2009-10-30
Implemented Date:2010-05-01
Issued by:
The Standardization Administration of the People's Republic of China