用于可吸入颗粒物采样器校准的标准微粒研制和定值

摘要

An inhalable particulate matter (PM10) sampler is the necessary device for monitoring PM10 in air. The accuracy of the device is a primary character in evaluation of the apparatus' metro-logical performance. Spherical standard particulate matter is ideal for the calibration of samplers. Five kinds of monodisperse microsphere size particulate matters which are made from polystyrene cross-linked with divinylbenzene were developed and certified. The technical specifications of the developed standard particulate matters meet the requirements for cutting test of inhalable particulate matter PM10 sampler.%可吸入颗粒物PM10采样器(切割器)适用于大气中PM10可吸入颗粒物监测,采样器的准确性是评价其计量性能的主要指标.校准采样器需使用球形标准微粒,介绍5种微米级单分散交联聚苯乙烯球形微粒的研制和定值.所研制的5种微粒粒度标准物质,其技术指标满足我国对可吸入颗粒物PM10采样器的切割测试要求.