Home / Standards / GB/T 6730.25-2006 GB/T 6730.25-2006 Abolished Iron ores - Determination of total rare earth contents - Oxalate gravimetric method 铁矿石 稀土总量的测定 草酸盐重量法 Standard Type GBT ICS 73.060.10 CCS D31 Status 废止 Issue Date 2006-11-01 Implementation 2007-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit 中国钢铁工业协会