China 'GB/T 6730.9-2016
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 6730.9-2016
Iron ores—Determination of silicon content—The silicomolybdic blue spectrophotometric method reduced 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:2016-10-13
Implemented Date:2017-09-01
Issued by:
The Standardization Administration of the People's Republic of China