China 'GB/T 14849.7-2015
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 14849.7-2015
Methods for chemical analysis of silicon metal—Part 7: Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometry 工业硅化学分析方法 第7部分:磷含量的测定 磷钼蓝分光光度法
Issued Date:2015-09-11
Implemented Date:2016-06-01
Issued by:
The Standardization Administration of the People's Republic of China