室内空气 第42部分：冷凝粒子计数器测量粒子数浓度

[中文适用范围]： 本文件规定了使用凝聚粒子计数器 (CPC) 测量约 10 nm 至 3 µm 之间的粒子来确定室内单位体积空气中悬浮粒子总数的测量方法和策略。注意：由于粒子数浓度通常以超细粒子 (UFP) 分数为主，因此所得结果可用作 UFP 浓度的近似值。本文件还讨论了质量保证、测量不确定度的确定和最低限度的报告信息。本文件适用于 ISO 16000-1 中规定的室内环境。本文件不涉及生物气溶胶的测定或粒子的化学特性。尽管如此，一些生物气溶胶可以通过 CPC 检测到，然后有助于测量粒子数。 [外文原描述]： This document specifies the measurement methods and strategies for determining the total number of airborne particles per unit volume of air indoor, using a condensation particle counter (CPC) for particles approximately between 10 nm to 3 µm. NOTE As the particle number concentration is usually dominated by the ultrafine particle (UFP) fraction, the obtained result can be used as an approximation of the UFP concentration. Quality assurance, determination of the measurement uncertainty and minimal reporting information are also discussed in this document. This document is applicable to indoor environments as specified in ISO 16000 - 1 . This document does not address the determination of bioaerosols or the chemical characterization of particles. Nevertheless, some bioaerosols can be detected by the CPC and then contribute to the measured count of particles.