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International Standard Category: Cadmium, cobalt and their alloys

GB/T 15249.4-1994    Crude Gold-Determination of lead content-EDTA titrimetric method
合质金化学分析方法 EDTA滴定法测定铅量 ;
Category No.:77.120.70 Valid Status:superseded
Issued Organization:China People's Bank Issued Date:1994-10-07
Implemented Date:1995-8-1 Abolished Date:
Superseded Standard.:GB/T 15249.4-2009 Methods for chemical analysis of crude gold - Part 4: Determination of lead content - EDTA titrimetric method
Superseded Date:2009-10-1
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