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煤中全硫测量结果的不确定度评定

魏宁

Coal Processing and Comprehensive Utilization（2020）

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Abstract
基于库仑滴定法测定煤中全硫的方法建立测量模型,从7个方面分析库仑法测定煤中全硫时其测量结果的不确定度来源;所测试样按照文中方法评定的煤中全硫测量结果为St,ad=(1.12±0.06)％,k=2(k为95％概率下的包含因子);在煤中全硫测量不确定度各分量中,1/2硫的摩尔质量16、测量重复性、仪器标定这3个分量的影响最大.
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