周昭露　赵绍伟　陈莹

摘 要：參照标准ISO 12219-9-2019 《汽车内饰件挥发性有机物测定-大袋法》选择2000L采样袋测定座椅皮革的醛类类物质的含量，并依照JJF 1059.1-2012《测量不确定度评定与表示》对测量结果进行不确定度分析与评定。根据检测结果计算公式建立不确定度分析的数学模型，从氮气填充、采样、标准溶液、标准曲线拟合、重复测量等不确定分量合成标准不确定度。结果显示标准曲线拟合、重复测量两个不确定度分量对合成不确定度的贡献最大，通过对不确定度的评定，规范试验方法，确保检测结果的准确性。

关键词：袋法 汽车内饰材料 醛类物质 不确定度

Evaluation of Uncertainty in Determination of Aldehydes in Vehicle Interior Parts-Bad Method

Zhou Zhaolu Zhao Shaowei Chen Ying

Abstract：With reference to ISO 12219-9-2019， a 2000L sampling bag was selected to determine the content of aldehydes in seat leather. In accordance with JJF 1059.1-2012， the article analyzes and evaluates measurement results. The mathematical model of uncertainty analysis is established according to the calculation formula of the test results， and the standard uncertainty is synthesized from the uncertain components such as nitrogen filling， sampling， standard solution， standard curve fitting， and repeated measurement. The results show that the two uncertainty components of standard curve fitting and repeated measurement contribute the most to the combined uncertainty. Through the evaluation of the uncertainty， the standard test method is used to ensure the accuracy of the test results.

Key words：Bag Method， Aldehydes in Vehicle Interior Parts， Aldehydes， uncertainty