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International Standard Category: Copper and copper alloys

GB/T 13293.4-1991    Higher purity copper cathode-Determination of antimony content-2-[(-5-bromo-2-pyridyl)azo]-5-diethylaminophenol spectrophotometric method
高纯阴极铜化学分析方法 5-Br-PADAP分光光度法测定锑量 ;
Category No.:77.120.30 Valid Status:abolished
Issued Organization:STSB Issued Date:1991-01-02
Implemented Date:1992-10-1 Abolished Date:2008-12-01
Superseded Standard.:GB/T 5121.12-2008 Methods for chemical analysis of copper and copper alloys - Part 12: Determination of antimony content
Superseded Date:2008-12-1
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