一般通风用空气过滤器第3部分:重量效率和气流阻力与捕获的试验粉尘质量的测定

[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重量效率和气流阻力的测试设备和测试方法。它旨在与 ISO 16890-1、ISO 16890-2 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（5 400 m3/h、3 178 ft3/min）之间的空气流速，指的是标称表面积为 610 mm × 610 mm（24 in × 24 in）的试验台。本文件指的是按照 ISO 16890 系列中定义的程序进行测试时，ePM1 效率小于或等于 99% 且 ePM10 效率大于 20% 的一般通风用颗粒空气过滤元件。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滤芯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滤芯。 [外文原描述]： This document specifies the test equipment and the test methods used for measuring the gravimetric efficiency and resistance to air flow of air filter for general ventilation. It is intended for use in conjunction with ISO 16890-1, ISO 16890-2 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 in × 24 in). 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 in 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 does not apply to filter elements used in portable room-air cleaners.