China 'GB/T 6730.9-2006
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 6730.9-2006
Iron ores - Determination of silicon contents - The silicomolybdic blue spectrophotometric method reduce by ammonium ferrous sulfate 铁矿石 硅含量的测定 硫酸亚铁铵还原-硅钼蓝分光光度法
Issued Date:2006-11-01
Implemented Date:2007-02-01
Issued by:
The Standardization Administration of the People's Republic of China