This standard specifies the requirements, test methods, inspection rules and packaging, marking, transportation, storage and quality certificates of scandium oxide. This standard applies to scandium oxide produced by extraction, ion exchange or extraction chromatography for use in lasers, electric light sources, atomic energy, electronics, metallurgy and other fields.
GB/T 13219-2018 Referenced Document
GB/T 12690.2 Chemical analysis methods for nonrare earth impurity of rare earth metals and their oxides—Part 2: Determination of ignition loss content of rare earth oxides—Gravimetric method
GB/T 12690.3 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides.Part 3:Determination of water content of rare earth oxides.Gravimetric method
GB/T 17803 Designation system for rare earth products
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values