China 'GB/T 3884.2-2025
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 3884.2-2025
Chemical Analysis Methods for Copper Concentrates Part 2: Determination of Gold and Silver Content by Flame Atomic Absorption Spectroscopy and Fire Assay 铜精矿化学分析方法-第2部分:金和银含量的测定 - 火焰原子吸收光谱法和火试金法
Issued Date:2025/8/29
Implemented Date:2026/3/1
Issued by:
The Standardization Administration of the People's Republic of China