Home / Standards / GB/T 28882-2012 GB/T 28882-2012 Active Rare earth carbonate of ion-absorpted type rare earth ore 离子型稀土矿碳酸稀土 Standard Type GBT ICS 77.120.99 CCS H65 Status 现行 Issue Date 2012-11-05 Implementation 2013-05-01 Responsible Dept 国家标准委 Drafting Unit N/A