中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 14849.1-2007
Methods for chemical analysis of silicon metal - Part 1: Determination of iron content - 1,10-phenanthrolion spectrophotometric method 工业硅化学分析方法 第1部分:铁含量的测定 1,10一二氮杂菲分光光度法
Issued Date:2007-10-25
Implemented Date:2008-04-01
Issued by:
The Standardization Administration of the People's Republic of China