压缩空气过滤器.试验方法.第3部分:微粒

[中文适用范围]： 本部分的ISO 12500为选择用于压缩空气系统的过滤器去除固体颗粒效率等级的方法提供了指南。本部分的ISO 12500规定了测试这些过滤器的布局和程序。根据被测过滤器设计去除的颗粒大小范围，建议使用测量方法。作为“型式试验”进行测试，代表性范围内应具有足够的代表性。本部分的ISO 12500中确定了以下两个颗粒直径范围：-- 细过滤器范围：0.01 µm 到 < 5.0 µm；-- 粗过滤器范围：W 5.0 µm 到 u 40 µm。 [外文原描述]： ISO 12500-3:2009 provides a guide for choosing an appropriate method of determining the solid particulate removal efficiency rating by particle size of filters used in compressed air systems. ISO 12500-3:2009 specifies the layouts and procedures for testing these filters. Measurement methods are recommended based on the size range of the particulates that the filter being tested has been designed to remove. The test is performed as a “type-test” on filters as being representative of a range. The following two particle diameter size ranges are identified in ISO 12500-3:2009: a fine filter range, 0,01 < 5,0 μm, and a coarse filter range, ≥ 5,0 ≤ 40 μm.