2020YS/T 575.14-2020 Methods of chemical analysis of bauxite ores Part 14: Determination of rare earth oxide content
2007YS/T 575.14-2007 Methods for chemical analysis of bauxite.Part 14:Determination the total content of rare earth oxide.Tribromo-arsenazo photometric method
2006YS/T 575.14-2006 Chemical analysis method of bauxite ore-tribromoarsine spectrophotometric determination of total rare earth oxides