摘要：介绍细颗粒物PM_2.5浓度测量、测量仪器的量值溯源方法和标准装置、切割头切割特性的检测方法, 以及检测用标准粒子的制备;研制PM_2.5采样器切割头检测装置, 制备粒径范围在1.04.0μmm的用于PM_2.5采样器切割头切割特性检测的系列标准粒子, 对可吸入颗粒物测量仪量值传递方法和准确性检验方法进行研究。通过本研究工作, 可以建立PM_2.5测量的参考方法, 实现对PM_2.5测量结果的准确溯源, 使得PM_2.5的检测数据可溯源至质量标准。

关键词：细颗粒物 (PM _2.5) ；标准粒子；切割特性

Abstract：The measuring method of fine particulate matter PM_2.5 concentration and the metrological traceability of instruments as well as the testing method of standard devices and separator characteristics were introduced. The preparation of standard particles used in testing was discussed. The instruments used to measure the separator characteristics of PM_2.5 sampler were developed. A series of standard particles with the sizes between 1.0 and 4.0 μm to calibrate the characteristics of sampler separator were prepared. The research on quantity dissemination method and accuracy testing method of the inhalable particulate measuring devices were carried out. Through the research work, the reference method of testing PM_2.5 can be established and the detection data of PM_2.5 can be traced to the mass standard.

Keywords：fine particulate matter (PM_2.5) ; standard particle; cutting characteristics