袋法測定汽車內(nèi)飾材料中醛類物質(zhì)含量的不確定度評定
2021-10-13 22:41:51周昭露趙紹偉陳瑩
時代汽車 2021年20期
周昭露 趙紹偉 陳瑩
摘 要：參照標(biāo)準(zhǔn)ISO 12219-9-2019 《汽車內(nèi)飾件揮發(fā)性有機(jī)物測定-大袋法》選擇2000L采樣袋測定座椅皮革的醛類類物質(zhì)的含量，并依照J(rèn)JF 1059.1-2012《測量不確定度評定與表示》對測量結(jié)果進(jìn)行不確定度分析與評定。根據(jù)檢測結(jié)果計算公式建立不確定度分析的數(shù)學(xué)模型，從氮?dú)馓畛?、采樣、?biāo)準(zhǔn)溶液、標(biāo)準(zhǔn)曲線擬合、重復(fù)測量等不確定分量合成標(biāo)準(zhǔn)不確定度。結(jié)果顯示標(biāo)準(zhǔn)曲線擬合、重復(fù)測量兩個不確定度分量對合成不確定度的貢獻(xiàn)最大，通過對不確定度的評定，規(guī)范試驗方法，確保檢測結(jié)果的準(zhǔn)確性。
關(guān)鍵詞：袋法 汽車內(nèi)飾材料 醛類物質(zhì) 不確定度
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
