YS/T 568.7-2006 Determination of phosphorus content in zirconium oxide and hafnium oxide (antimony salt-molybdenum ascorbate blue absorptiometry) (English Version)
2008YS/T 568.7-2008 Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of phosphorus content.The reduced molybdoantimonylphosphate complex spectrophotometric method
2006YS/T 568.7-2006 Determination of phosphorus content in zirconium oxide and hafnium oxide (antimony salt-molybdenum ascorbate blue absorptiometry)