CAJ | 학술논문

按照GB18581-2001的测定方法及程序,评定了气相测定溶剂型涂料中甲苯含量的测量不确定度.由于数学模型中涉及两个非线性函数,故采用求相对标准不确定度的方法对各变量进行了分析,最后计算得到各变量的合成不确定度为0.020%,扩展不确定度为0.040%.相对于通过求偏导得出灵敏系数评定不确定度的方法,此方法大大提高了工作效率.
안조GB18581-2001적측정방법급정서,평정료기상측정용제형도료중갑분함량적측량불학정도.유우수학모형중섭급량개비선성함수,고채용구상대표준불학정도적방법대각변량진행료분석,최후계산득도각변량적합성불학정도위0.020%,확전불학정도위0.040%.상대우통과구편도득출령민계수평정불학정도적방법,차방법대대제고료공작효솔.
According to the national standard of GB18581-2001, a method for uncertainty evaluation of toluene by GC is developed. Since the mathematic model contains two nonlinear functions, the various variables among the procedures are analyzed and the uncertainty is calculated by relative standard uncertainty. By synthesizing the uncertainties of various component variables, the combined uncertainty is 0.020% and the expanded uncertainty is 0.040%. Comparing the method for uncertainty evaluation by getting sensitivity coefficient from derivation, this method is time-saved and efficient.