NF E51-729-8*NF EN 13141-8:2014 建筑物通风 住宅通风用组件/产品的性能试验 第8部分:独院住宅用机械通风系统非导流罩的机械供气排气通风设备(热回收除外)的性能试验
Ventilation for buildings - Performance testing of components/products for residential ventilation - Part 8 : performance testing of un-ducted mechanical supply and exhaust ventilation units (including heat recovery) for mechanical ventilation systems int