Home / Standards / GB/T 3884.2-2000 GB/T 3884.2-2000 Methods for chemical analysis of copper concentrates—Determination of gold and silver contents 铜精矿化学分析方法 金和银量的测定 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A