China 'GB/T 8151.4-2012
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 8151.4-2012
Methods for chemical analysis of zinc concentrates - Part 4: Determination of silicon dioxide content - Molybdenum blue spectrophotometry 锌精矿化学分析方法 第4部分:二氧化硅量的测定 钼蓝分光光度法
Issued Date:2012-12-31
Implemented Date:2013-10-01
Issued by:
The Standardization Administration of the People's Republic of China