China 'GB/T 223.74-1997
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 223.74-1997
Methods for chemical analysis of iron,steel and alloy--The combustion gravimetric/gas-volumetric method for the determination of non-combined carbon content 钢铁及合金化学分析方法 非化合碳含量的测定
Issued Date:1997-03-17
Implemented Date:1997-09-01
Issued by:
The Standardization Administration of the People's Republic of China