YS/T 509.1-2006 Methods for chemical analysis of spodumene and lepidolite concentrates - Determination of lithium oxide, sodium oxide and potassium oxide by atomic absorption spectrophotometry (English Version)
2008YS/T 509.1-2008 Methods for chemical analysis of spodumene and lepidolite concentrates.Determination of lithium oxide, sodium oxide, and potassium oxide contents.Flame atomic absorption spectometric method
2006YS/T 509.1-2006 Methods for chemical analysis of spodumene and lepidolite concentrates - Determination of lithium oxide, sodium oxide and potassium oxide by atomic absorption spectrophotometry