China 'GB/T 6150.12-2023
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 6150.12-2023
Methods for chemical analysis of tungsten concentrates Part 12: Determination of silica content Silicon-molybdenum blue spectrophotometry and gravimetric method 钨精矿化学分析方法 第12部分：二氧化硅含量的测定 硅钼蓝分光光度法和重量法
Issued Date:2023/8/6
Implemented Date:2024/3/1
Issued by:
The Standardization Administration of the People's Republic of China
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