2022GB/T 6730.83-2022 Iron ores—Determination of loss on ignition—Gravimetric method corrected by hygroscopic water
2017GB/T 6730.3-2017 Iron ores—Determination of hygroscopic moisture in analytical samples—Gravimetric, Karl Fischer and mass-loss methods
2016GB/T 6730.73-2016 Iron ores.Determination of total iron content.EDTA photometric titration method
2007GB/T 6730.13-2007 Iron ores.Determination of calcium and magnesium content.EGTA-CyDTA titrimetric method
2006GB/T 6730.63-2006 Iron ores.Determiantion of aluminum,calcium,magnesium,manganese,phosphorus,silicon and titanium content.Inductively coupled plasma atomic emission spectrometric method
2004GB/T 6730.53-2004 Iron ores-Determination of zinc content-Flame atomic absorption spectrometric method
1986GB/T 6730.43-1986 Methods for chemical analysis of iron ores--The oscilloscopic polarography method for the determination of zinc content