本欧洲标准规定了在压力差异下运行的排气和供气终端设备的实验室方法。 它适用于机械和自然住宅通风系统中使用的以下类型的设备: - 手动调节开口的装置;要么 - 具有固定开口的装置;要么 - 压差控制装置。 它描述了旨在表征的测试: - 流量/压力; - 空气扩散特性（用于供气端子装置）; - 系统部件的噪声产生; - 系统部件的插入损耗; - 隔音

This European Standard specifies laboratory methods for testing exhaust and supply air terminal devices operating under pressure differences. It applies to devices used in mechanical and natural residential ventilation systems, of the following types: - device with a manually adjustable opening; or - device with a fixed opening; or - pressure difference controlled device. It describes tests intended to characterize: - flow rate/pressure; - air diffusion characteristics (for supply air terminal devices); - noise production for components of systems; - insertion loss of component of systems; - sound insulation.