YS/T 575.9-2006 Methods of chemical analysis of bauxite ore - Determination of potassium oxide and sodium oxide by flame atomic absorption spectrometry (English Version)
2007YS/T 575.9-2007 Methods for chemical analysis of bauxite.Part 9:Determination of potassium oxide and sodium oxide content.Flame atomic absorption spectrophotometric method
2006YS/T 575.9-2006 Methods of chemical analysis of bauxite ore - Determination of potassium oxide and sodium oxide by flame atomic absorption spectrometry