China 'GB/T 223.41-1985
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 223.41-1985
Methods for chemical analysis of iron，steel and alloy--The anion-exchange separation-pyrogallol photometric method for the determination of tantalum content 钢铁及合金化学分析方法 离子交换分离-连苯三酚光度法测定钽量
Issued Date:1985-07-18
Implemented Date:1986-06-01
Issued by:
The Standardization Administration of the People's Republic of China
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