本文件规定了基底表面含有聚合物纳米纤维的空气过滤介质的测量特性。它还描述了确定个体特征的测量方法。 本文件不包括健康和安全问题的特定特征。 注:与应用相关的空气过滤介质的性能/性能评估需要使用相关的公布标准。过滤介质的物理性质和性能，如压降，以及空气过滤介质的颗粒去除效率，均采用适合特定应用的测试方法进行测量。

This document specifies the characteristics to be measured of air filter media containing polymeric nanofibres on the surfaces of a substrate. It also describes measurement methods for determining the individual characteristics. This document does not cover characteristics specific for health and safety issues. NOTE The properties/performances assessment of air filter media related to applications requires the use of relevant published standards. The physical properties and performances of filtration media, such as pressure drop, and the particle removal efficiency of air filter media are measured with test methods suitable for specific applications.