ISO 23328-2:2002规定了麻醉和呼吸用呼吸系统过滤器（BSF）非过滤方面的要求，并说明了连接端口、泄漏、流动阻力、包装、标记和提供的信息。本试验方法适用于与临床呼吸系统一起使用的BSF。 它不适用于其他类型的过滤器，例如用于保护真空源或气体取样管线、过滤压缩气体或保护生理呼吸测量测试设备的过滤器。 ISO 23328中给出了评估BSF过滤性能的方法- 1.

ISO 23328-2:2002 specifies requirements for non-filtration aspects of breathing system filters (BSF) intended for anaesthetic and respiratory use, and addresses connection ports, leakage, resistance to flow, packaging, marking and information supplied. The test method is intended for BSF used with a clinical breathing system. It is not applicable to other types of filter, e.g. those designed to protect vacuum sources or gas sample lines, to filter compressed gases, or to protect test equipment for physiological respiratory measurements. A method for assessing filtration performance of BSF is given in ISO 23328-1.