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See Chinese contents: GB/T 13219-2018 GB/T 13219-2018: Scandium oxide
This standard specifies the requirements, test methods, inspection rules and packaging, marking, transportation, storage and quality certificates of scandium oxide. This standard is applicable to scandium oxide produced by extraction method, ion exchange method or extraction chromatography method for use in laser, electric light source, atomic energy, electronics, metallurgy and other fields.
