China 'GB/T 12690.5-2017
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 12690.5-2017
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5: Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents 稀土金属及其氧化物中非稀土杂质化学分析方法 第5部分:钴、锰、铅、镍、铜、锌、铝、铬、镁、镉、钒、铁量的测定
Issued Date:2017-10-17
Implemented Date:2018-02-01
Issued by:
The Standardization Administration of the People's Republic of China