测试标准主要用于比较产品。此外，测试结果应能与实际运行预期相关联。ASHRAE 52.1和标准52.2P中使用的当前装载粉尘不具有这些特性。ASHRAE Std.52.2P中反映了对新负载灰尘的需求，该标准讨论了电子空气滤清器如何与当前负载灰尘不兼容，以及带电纤维介质过滤器的结果如何不能反映现实生活中的性能变化。为了克服这些问题，需要一种成分更接近环境空气中实际发现的成分的新装载粉尘。本研究项目的目标是:1）开发ASHRAE标准52.1和52.2中使用的装载粉尘或装载粉尘，以反映环境空气运行中的实际性能。性能特征包括效率、压降、二次夹带和寿命。2） 为两种标准制定加载程序。

Test standards are primarily made to compare products. Furthermore, the test results should have the possibility to be correlated to real operation expectations. The current loading dust used in ASHRAE 52.1 and Std. 52.2P does not have these properties.The need for a new loading dust is reflected in ASHRAE Std. 52.2P, which discuss how electronic air cleaners may be incompatible with the current loading dust and how results for charged-fiber media filters may not reflect real-life performance changes.A new loading dust that has a composition that is more close to what is actually found in ambient air is necessary to overcome these objections.The objective of this research project is: 1) To develop a loading dust or loading dusts to be used in ASHRAE standard 52.1 and 52.2 that will reflect real performance in ambient air operation. Performance characteristics include efficiency, pressure drop, re-entrainment and life. 2) To develop a loading procedure for both standards.