BS EN 13141-1:2004

This European standard specifies laboratory methods for testing externally and internally mounted air transfer devices operating under pressure differences. It applies to any devices located between two spaces (between one room and outside, or between two rooms) such as: – devices with fixed opening(s); – devices with manually adjustable opening(s); – devices with pressure difference controlled opening(s). It describes tests intended to characterize the following: – flowrate/pressure; – air diffusion; – air leakage (for closeable externally mounted air transfer device); – sound reduction;…