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International Standard Category: Cadmium, cobalt and their alloys

GB/T 12690.28-2000    Rare earth metals and their oxide--Determination of calcium oxide content--Inductively coupled plasma atomic emission spectrographic method
稀土金属及其氧化物化学分析方法 电感耦合等离子体发射光谱法测定稀土氧化物中氧化钙量 ;
Category No.:77.120.70 Valid Status:superseded
Issued Organization:General Administration of Quality Supervision, Inspection and Quarantine of PRC Issued Date:2000-06-05
Implemented Date:2000-1-1 Abolished Date:2006-10-01
Superseded Standard.:GB/T 12690.15-2006 Chemical analysis methods for non-rare earth metals and their oxide Determination of calcium oxide content
Superseded Date:2006-10-1
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