| 1 | Iron ores | 1 | Moisture content | Iron ores-Determination of moisture content Gravimetric method GB/T 6730.2-2018 |
| 2 | Total iron content | Iron ores-Determination of total iron content -Titanium(Ⅲ）chloride reduction potassium dichromate titation methods(routine methods) GB/T 6730.65- 2009 |
| 3 | Si | Iron ores-Determination of silicon content-Gravimetric methods GB/T 6730.10-2014 |
| 4 | C,S | Iron ores- Determination of carbon and sulfur content-High frequency combustion with infrared absorption method GB/T 6730.61-2005 |
| 5 | Al,Ca,Mg,Mn,P,Si,Ti | Iron ores - Determination of aluminum,calcium,magnesium,manganese,phosphorus,silicon and titanium content - Inductively coupled plasma atomic emission spectrometric method GB/T 6730.63-2006 |
