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gong zuo chang suo kong qi zhong 1,1- er lv -1- xiao ji yi wan ce ding jie guo de bu que ding du ping ding
Author(s): ZHAO Shuzuo, ZHANG Jian, ZHANG Wanchao
Pages: 477-
478
Year: 2012
Issue:
6
Journal: Chinese Journal of Industrial Hygiene and Occupational Diseases
Abstract: 目的 对作业场所空气中1,1-二氯-1-硝基乙烷测定结果的不确定度进行评定,为检测质量控制提供依据.方法 根据测量不确定度的评定原理和测定方法进行评定,并对测定结果进行完整描述.结果 当工作场所空气中1,1-二氯-1-硝基乙烷浓度为8.28 mg/m3,方法的合成标准不确定度为8.65%,扩展不确定度为1.44 mg/m3.结论 该方法的不确定度主要来源于工作曲线的拟合,解吸效率,空气采样器、温度...
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