Home / Standards / GB 6150.8-85 GB 6150.8-85 Chemical Analysis Methods for Tungsten Concentrates — Determination of Hygroscopic Moisture Content by Gravimetric Method 钨精矿化学分析方法 重量法测定湿存水量 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