YS/T 568.4-2008
氧化锆、氧化铪化学分析方法 铝量的测定 铬天青S-氯化十四烷基吡啶分光光度法
Chemical analysis methods for zirconium oxide and hafnium oxide.Determination of aluminium content.Chronic azurol-S-tetradrcylpyridine chloride spectrophotometric method
YST568.4-2008, YS568.4-2008