摘要
Abstract
According to the mathematical model from JJF-1059-2012 Coal uncertainty evaluation and representation and GB/T 212—2008 Proximate analysis of coal,coal sampling,sample preparation,ash determination for whole batch coal were done and analysis,calculation and synthesis of all components of uncertainty in whole determination process were done as well,through comparing the uncertainty of every components,it was indicated that sampling process was the main element which affected the dry base ash determination uncertainty.关键词
灰分/不确定度评定/检测结果/合成不确定度/扩展不确定度Key words
ash/uncertainty evaluation/testing result/synthetic uncertainty/expanded uncertainty分类
化学化工
