一般通风用空气过滤器.第2部分:分数效率和气流阻力的测量

[中文适用范围]： 本文件规定了用于测量一般通风用空气过滤器的分数效率和气流阻力的气溶胶产生、测试设备和测试方法。 它旨在与 ISO 16890-1、ISO 16890-3 和 ISO 16890-4 结合使用。 本文件中描述的测试方法适用于 0.25 m3/s（900 m3/h，530 ft3/min）和 1.5 m3/s（5400 m3/h，3178 ft3/min）之间的空气流量，指标称表面面积为 610 毫米 × 610 毫米（24.0 英寸 × 24.0 英寸）的测试台。 本文件涉及用于一般通风的颗粒空气过滤器滤芯，根据 ISO 16890 系列中定义的程序进行测试时，ePM1 效率小于或等于 99%，ePM10 效率大于 20%。 注：本测试程序的下限设定为最低 ePM10 效率 20%，因为低于此水平的测试过滤元件很难满足本程序的统计有效性要求。 本文件不适用于便携式室内空气净化器中使用的过滤元件。 [外文原描述]： This document specifies the aerosol production, the test equipment and the test methods used for measuring fractional efficiency and air flow resistance of air filters for general ventilation. It is intended to be used in conjunction with ISO 16890‑1, ISO 16890‑3 and ISO 16890‑4. The test method described in this document is applicable for air flow rates between 0,25 m 3 /s (900 m 3 /h, 530 ft 3 /min) and 1,5 m 3 /s (5 400 m 3 /h, 3 178 ft 3 /min), referring to a test rig with a nominal face area of 610 mm × 610 mm (24.0 inches × 24.0 inches). This document refers to particulate air filter elements for general ventilation having an e PM 1 efficiency less than or equal to 99 % and an e PM 10 efficiency greater than 20 % when tested as per the procedures defined within the ISO 16890 series. NOTE The lower limit for this test procedure is set at a minimum e PM 10 efficiency of 20 % since it is very difficult for a test filter element below this level to meet the statistical validity requirements of this procedure. This document is not applicable to filter elements used in portable room-air cleaners.