袋式法检测车内非金属部件醛酮类物质的测量不确定度评定

Evaluation of Measurement Uncertainty of Aldehydes and Ketones in Non-metallic Components in Vehicles by Bag Method

根据GB/T 39897-2021中袋式法检测车内非金属部件醛酮类物质含量,对检测结果进行不确定度评定和影响不确定度的各个因素进行分析,结果表明:不确定度主要来源于标准工作曲线拟合、测量重复性和仪器定量测量重复性。

According to the detection of aldehydes and ketones in non-metallic components in the vehicle by the bag method in GB/T 39897-2021,the uncertainty of the detection result is evaluated and each factor that affects the uncertainty is analyzed.The results show that the main source of uncertainty lies in the fitting of the standard working curve,the measurement reproducibility,and the reproducibility of the quantitative measurement of the instrument.