ISO 3744:1994Withdrawn

Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering method in an essentially free field over a reflecting plane

Acoustique — Détermination des niveaux de puissance acoustique émis par les sources de bruit à partir de la pression acoustique — Méthode d'expertise dans des conditions approchant celles du champ libre sur plan réfléchissant

Abstract / scope

Specifies a method of measurement. Gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the sound power level of the source is calculated, leading to results which have a grade 2 accuracy.

Life cycle

Replaces

ISO 3744:1981WithdrawnAcoustics — Determination of sound power levels of noise sources — Engineering methods for free-field conditions over a reflecting planeInternational Standard · Published 1 May 1981 · ISO/TC 43

Replaced by

ISO 3744:2010WithdrawnAcoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting planeInternational Standard · Published 22 Sep 2010 · ISO/TC 43/SC 1