YS/T 509.5-2006 Spodumene and Lepidolite Concentrate Chemical Analysis Method EDTA Volumetric Method for Determination of Ferric Oxide Content (English Version)
2008YS/T 509.5-2008 Methods for chemical analysis of spodumene and lepidolite concentrates.Determination of ferric oxide content.O-phenanthroline photometric method and EDTA compleximetric method
2006YS/T 509.5-2006 Spodumene and Lepidolite Concentrate Chemical Analysis Method EDTA Volumetric Method for Determination of Ferric Oxide Content