重量法测定空气中PM10的不确定度评定研究

根据重量法测定空气中PM10的测量方法原理,建立数学模型,从样品现场采样与实验室测试相结合引入各不确定度分量,分析并评定用重量法测定空气中PM10的不确定度,确定合成不确定和扩展不确定度.从各不确定度分量大小,最终确定测量不确定度影响因素并加以有效控制及改进,改善测量方法和手段,从而为空气中PM10浓度测定提高检测数据准确性,提供科学检测依据.

Evaluation of Uncertainty in Determining PM10 with Gravimetric Method

According to the principle of measurement methods for determining PM10 in air, the mathematical model was established with samples from the sample field combined with laboratory testing into the uncertainty components, analysis and assessment of determination of PM10 in air by weight method. The uncertainty of the determination of synthesis, uncertainty and extended uncertainty were analyzed. From each uncertainty component size, ultimately determine the measurement uncertainty factors and effective control and improvement, improve the measurement methods and means to improve the detection accuracy of the data, the determination of PM10 concentration in the air, and provide Scientific basis for detecting.