GB/T 3286.3-2012
石灰石及白云石化学分析方法.第3部分:氧化铝含量的测定.铬天青S分光光度法和络合滴定法
Methods for chemical analysis of limestone and dolomite.Part 3:The determination of aluminium oxide content.The chrome azurol S spectrophotometric method and the complexometric titration method
GBT3286.3-2012, GB3286.3-2012