摘要
运用GB/T 18510-2001中与标准物质相比较的方法对运用高温燃烧热导池检测法测定煤中氮的结果进行t-检验和F-检验,证明该方法完全符合GB/T 476-2001中对氮元素测定的要求。运用SN/T 1492-2004对该方法的单次测定结果进行评估得知其在可接受公差区间以内,证明该方法的单次测定结果也完全符合GB/T 476-2001对测定结果的要求。
According to GB/T 18510-2001,by the method of comparing with reference matters,the authors carry out t-test and F-test for the measurements of nitrogen in coals by high temperature combustion thermal conductivity cell detector.The results show that this method accords with the measurement of nitrogen in coals by GB/T 476-2001.The single measurement of this method is evaluated by means of SN/T 1492-2004.The results show that it is in the acceptable difference range and also accord with the demand of GB/T 476-2001.
出处
《煤质技术》
2006年第2期29-31,共3页
Coal Quality Technology
关键词
煤中氮
高温燃烧热导池检测法
准确度
精密度
nitrogen in coals
high temperature thermal conductivity detector
accuracy
precision
