China 'GB/T 12690.17-2010
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 12690.17-2010
Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 17：Determination of niobium and tantalum contents of rare earth metals 稀土金属及其氧化物中非稀土杂质化学分析方法 第17部分：稀土金属中铌、钽量的测定
Issued Date:2011-01-14
Implemented Date:2011-11-01
Issued by:
The Standardization Administration of the People's Republic of China
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