China 'GB/T 4702.1-1997
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 4702.1-1997
Methods for chemical analysis of chromium metal--The ammonium ferrous sulfate volumetric method for thedetermination of chromium content 金属铬化学分析方法 硫酸亚铁铵容量法测定铬量
Issued Date:1997-11-11
Implemented Date:1998-05-01
Issued by:
The Standardization Administration of the People's Republic of China