ISO 7235:1991Withdrawn

Acoustics — Measurement procedures for ducted silencers — Insertion loss, flow noise and total pressure loss

Acoustique — Méthodes de mesurage pour silencieux en conduit — Perte d'insertion, bruit d'écoulement et perte de pression totale

This edition has been replaced by ISO 7235:2003.

Abstract / scope

Specifies the substitution method for determining the insertion loss. The measurement procedures are intended for laboratory measurements on silencers but may also be used for in situ measurements on silencers if the requirements of ISO 7235 can be met. Applies to silencers for ventilating and air-conditioning systems. Does not apply to reactive silencers used for motor vehicles.

Life cycle

Replaced by

ISO 7235:2003PublishedAcoustics — Laboratory measurement procedures for ducted silencers and air-terminal units — Insertion loss, flow noise and total pressure lossInternational Standard · Published 28 Aug 2003 · ISO/TC 43/SC 1