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International Standard Category: Lead, zinc, tin and their alloys

GB/T 12689.14-1990    Zinc and zinc alloys―Determination of aluminium content―Chromazurol S spectrophotometric method
锌及锌合金化学分析方法 铬天青S 分光光度法测定铝量 ;
Category No.:77.120.60 Valid Status:abolished
Issued Organization: Issued Date:1990-12-30
Implemented Date:1992-1-1 Abolished Date:2004-10-01
Superseded Standard.:GB/T 12689.1-2004 The method for chemical analysis of zinc and zinc alloys―The determination of aluminum content―The chromaurol S-polyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometric method and the chromeazurol S spectrophotometric method and th
Superseded Date:2004-10-1
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