Home / Standards / GB/T 24220-2009 GB/T 24220-2009 Active Chromium ores - Determination of hygroscopic moisture content in analytical samples - Gravimetric method 铬矿石 分析样品中湿存水的测定 重量法 Standard Type GBT ICS 73.060.30 CCS D33 Status 现行 Issue Date 2009-07-15 Implementation 2010-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A