China 'GB/T 223.50-1994
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 223.50-1994
Methods for chemical analysis of iron，steel and alloy--The phenylfluorone-CTMAB direct photometric method for the determination of tin content 钢铁及合金化学分析方法 苯基荧光酮-溴化十六烷基三甲基胺直接光度法测定锡量
Issued Date:1994-09-26
Implemented Date:1995-06-01
Issued by:
The Standardization Administration of the People's Republic of China
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