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
全国钢标准化技术委员会(SAC/TC 183)
GB/T 3286的本部分规定了用铬天青S分光光度法和络合滴定法测定氧化铝含量。
本部分适用于石灰石、白云石中氧化铝含量的测定，也适用于冶金石灰中氧化铝含量的测定。铬天青S分光光度法，测定范围：氧化铝含量（质量分数）0.01% ~ 0.75%；络合滴定法，测定范围：氧化铝含量（质量分数）大于0.5%。
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