水泥化学分析三氧化硫含量的测量不确定度评定

摘要

本文依据GB／T 176－2008《水泥化学分析方法》硫酸钡重量法基准法测量水泥的三氧化硫含量，分析了操作要点，并依据JJF 1059.1－2012《测量不确定度评定与表示》和CNAS－GL06《化学分析中不确定度的评估指南》，对硫酸钡重量法测量水泥中三氧化硫含量的不确定度进行评定。%According to the barium sulphate gravimetry method which is described in GB /T 176-2008 “Methods for Chemical Analysis of Cement” for chemical analysis of sulfur trioxide content of cement , the operating procedure is analyzed.And according to JJF 1059.1-2012 “Evaluation and Expression of Uncertainty in Measurement” and CNAS-GL06“Guidance on Evaluating the Uncertainty in Chemical Analysis”, the uncertainty in measurement of the barium sulphate gravimetry method for chemical analysis of sulfur trioxide content of ce -ment is evaluated.