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See Chinese contents: GB/T 28882-2012 GB/T 28882-2012: Rare earth carbonate of ion-absorbed type rare earth ore
This Standard specifies the requirements, test methods, inspection rules and packaging, marking, transportation, storage and quality certificates of rare earth carbonate of ion-absorbed type rare earth ore. This Standard applies to rare earth carbonate of ion-absorbed type rare earth ore, which are mainly used as raw materials for grouping rare earths or separating single rare earth compounds.
