中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 223.14-2000
Methods for chemical analysis of iron,steel and alloy--The N-benzoy-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content 钢铁及合金化学分析方法 钽试剂萃取光度法测定钒含量
Issued Date:2000-04-11
Implemented Date:2000-11-01
Issued by:
The Standardization Administration of the People's Republic of China