China 'GB/T 4333.6-1988
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 4333.6-1988
Methods for chemical analysis of ferrosilicon--The diphenylcarbazide photometric method for the determination of chromium content 硅铁化学分析方法 二苯基碳酰二肼光度法测定铬量
Issued Date:1988-09-20
Implemented Date:1990-01-01
Issued by:
The Standardization Administration of the People's Republic of China