工作场所空气.称重已收集大气悬浮物的控制与表征不确定度

[中文适用范围]： 本国际标准提供了关于控制与气溶胶收集介质不稳定性相关的分析不确定度的建议，其中收集介质或收集基底包括用于收集颗粒的任何物品（例如滤纸或泡沫材料）以及必须通过称重进行分析的支撑元件。本国际标准适用于从文献中汇编的结果，以及在必要和可行的情况下通过实验室实验获得的结果。在可能的情况下，量化与给定气溶胶捕获方法相关的预期不确定度。给出了关于所用材料的建议。提供了减少由不稳定性引起的不确定度的方法。给出了称重程序的推荐。描述了一种估计称重不确定度的程序。最后，给出了关于报告测量质量（包括不确定度分量以及检测限和定量限）的建议。 [外文原描述]： ISO 15767:2009 provides recommendations for controlling the analytical uncertainty associated with aerosol collection medium instability, where collection medium or collection substrate includes any article used to collect particles (e.g. filter or foam material) as well as those supporting elements which must be analysed by weighing. ISO 15767:2009 is applicable to results compiled both from the literature and, if necessary and feasible, through laboratory experiment. Expected uncertainty associated with given aerosol capture methods is quantified where possible. Recommendations as to materials to be used are given. Means of minimizing uncertainty arising from instability are provided. Recommendations for the weighing procedure are given. A procedure for estimating weighing uncertainty is described. Finally, recommendations are given for the reporting of measured mass, including an uncertainty component and limits of detection and quantification.