ISO 13347-1:2004

Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 1: General overview

ISO 13347:2004 deals with the determination of the acoustic performance of industrial fans. In addition, it may be used to determine the acoustic performance of fans combined with an ancillary device such as a roof cowl or damper or, where the fan is fitted with a silencer, the sound power resulting from the fan and silencer combination.