Home / Standards / GB 6150.19-85 GB 6150.19-85 Chemical analysis of tungsten concentrates—Determination of antimony content by 5-Br-PADAP photometric method 钨精矿化学分析方法 5-Br-PADAP光度法测定锑量 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A