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International Standard Category: Oxides

GB/T 6609.18-1986    Methods for chemical analysis of aluminium oxide--The N,N-dimethyl-P-phenylenediamine photometric method for the determination of sulfate content
氧化铝化学分析方法 N,N-二甲基对苯二胺光度法测定硫酸根量 ;
Category No.:71.060.20 Valid Status:superseded
Issued Organization: Issued Date:1986-07-24
Implemented Date:1987-7-1 Abolished Date:
Superseded Standard.:GB/T 6609.18-2004 Chemical analysis methods and Determination of physical performance of alumina Determination of sulfate content-N,N-dimethy I-P-pheny lenediamine spectrophotometric method
Superseded Date:2004-7-1
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