YB/T 159.7-1999 Methods for chemical analysis of titanium concentrate (rock minerals).The flame atomic absorption spectrophotometric method for the determination of calcium oxide and magnesium oxide content (English Version)
2015YB/T 159.7-2015 Titanium concentrate(rock minerals).Determination of calcium oxide and magnesium oxide content.The flame atomic absorpton spectrophotometlric method
1999YB/T 159.7-1999 Methods for chemical analysis of titanium concentrate (rock minerals).The flame atomic absorption spectrophotometric method for the determination of calcium oxide and magnesium oxide content