GB/T 223.66-1989 Methods for chemical analysis of iron，steel and alloy–The thiocyanate chlorpromazine hydrochloride–chloro form extraction photometric method for the determination of tungsten content

Standard Number: GB/T 223.66-1989
Chinese:钢铁及合金化学分析方法 硫氰酸盐-盐酸氯丙嗪-三氯甲烷萃取光度法测定钨量
English:Methods for chemical analysis of iron，steel and alloy–The thiocyanate chlorpromazine hydrochloride–chloro form extraction photometric method for the determination of tungsten content

Effective Date:1990-07-01
Regulatory Authority:China Iron and Steel Industry Association
Issuing Regulatory Authority:State Bureau of Technical Supervision

Adheres to international standards:N
PDF Downloadable:Y

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