BS EN 13141-8-2014 建筑物通风.住宅通风用部件/产品的性能测试.独户住宅机械通风系统用非管道机械供气和排气通风装置(包括热回收)的性能测试
Ventilation for buildings. Performance testing of components/products for residential ventilation. Performance testing of un-ducted mechanical supply and exhaust ventilation units (including heat recovery) for mechanical ventilation systems intended for a