摘要
人们对室内环境尤其是甲醛对人体健康影响越发关注,准确的甲醛测量十分必要。本文根据GB/T 18204.2-2004《公共场所卫生检验方法第2部分:化学污染物》AHMT法测定甲醛,计算了重复测量、标准物质、量具、标准曲线、采样器等带来的不确定度,最后计算出扩展不确定度。通过比较分析,得出器具和采样器带来的不确定度对实验影响较大,是实验室重点关注对象。
People pay more and more attention to the indoor environment,especially the impact of formaldehyde on human health,accurate formaldehyde measurement is very necessary.In this paper,formaldehyde is determined by AHMT method according to GB/T 18204.2-2004,Examination methods for public places-Part 2:Chemical pollutants.The uncertainty caused by repeated measurement,reference material,measuring tool,standard curve and sampler is calculated.Finally,the extended uncertainty is calculated.Through comparative analysis,it is concluded that the uncertainty brought by the apparatus and sampler has great influence on the experiment,which is the focus of the experiment.
作者
徐辅明
卞伟鸣
XU Fuming;BIAN Weiming(Jiangsu Testing Center for Quality of Construction Engineering Co.,Ltd.)
出处
《中国标准化》
2023年第12期143-146,共4页
China Standardization
