空气质量.可清洗过滤介质的过滤特性的试验方法

[中文适用范围]： 本国际标准规定了用于比较表征脉冲喷射清洁过滤介质的标准参考测试方法，该介质用于在标准化测试条件下用于干气清洁的过滤元件（例如袋式过滤器、袋式过滤器、筒式过滤器）。 测试的主要目的是获得有关可清洁过滤介质的运行性能和颗粒排放的信息。 应当注意，虽然本文已经选择并描述了一种测试设备和操作方法，但是应当认识到，其他设备和操作布置也可以接受。 为了使候选设备成为等效设备，必须按照规定的程序（6.1）与标准参考设备进行比较。 规定了测试程序、所需测试设施的特性、测试条件以及结果的评估和呈现。 从该测试方法获得的结果并不用于预测全尺寸过滤设施的绝对性能。 然而，它们有助于选择和开发合适的可清洁过滤介质以及确定合适的操作参数。 其他任务，例如验证与 PM 排放相关的过滤介质、根据过滤性能对不同介质进行分类或过滤元件的清洁性和耐用性（即滤袋寿命的预测）可以使用指定的测试方法来解决。 [外文原描述]： ISO 11057:2011 specifies a standard reference test method for the comparative characterization of pulse-jet cleanable filter media, to be used in filter elements (e.g. bag filters, pocket filters, cartridge filters) applied in dry gas cleaning under standardized test conditions. The main purpose of testing is to gain information about both the operational performance and the particle emission of cleanable filter media. It should be noted that while one test apparatus and operating method has been chosen and described herein, it is recognized that other apparatus and operating arrangements can be found acceptable. In order for a candidate apparatus to become an equivalent apparatus, a comparison has to be performed with the standard reference apparatus according to a specified procedure. The test procedure, the characteristics of the required test facility, and the test conditions, as well as the evaluation and presentation of the results, are specified. The results obtained from this test method are not intended for prediction of the absolute performance of full-scale filter facilities. However, they are helpful for the selection and development of appropriate cleanable filter media and the identification of suitable operating parameters. Additional tasks such as verifying filter media concerning PM 2,5 emissions, the classification of different media according to their filtration performance or the cleanability and durability of filter elements (i.e. projection of bag lifetime) can be addressed using the test method specified.