BS EN ISO 3744:1995 - Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane – BSI British Standards

BS EN ISO 3744:1995

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

Status : Revised, Withdrawn   Published : October 1994 Replaced By : BS EN ISO 3744:2009

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

Executive summary

Requirements for measuring sound pressure and sound power levels of noise sources.

Abstract

This International Standard specifies a method for measuring the sound pressure levels on a measurement surface enveloping a noise source, under essentially free field conditions near one or more reflecting planes, in order to calculate the sound power level produced by the noise source. It 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.

History and related standards

This British Standard includes the following cross references:

ISO 354:1985, ISO 2204:1979, ISO 3745:1977, ISO 4871:1984, ISO 6926:1990, ISO 7574-1:1985, ISO 7574-4:1985, IEC 225:1966, IEC 651:1979, IEC 804:1985, IEC 942:1988.




Standard NumberBS EN ISO 3744:1995
TitleAcoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane
StatusRevised, Withdrawn
Publication Date15 October 1994
Confirm Date15 June 2000
Withdrawn Date30 April 2010
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Replaced ByBS EN ISO 3744:2009
ReplacesBS 4196-4:1981, ISO 3744-1981
International RelationshipsEN ISO 3744:1995,ISO 3744:1994
Amended ByAMD 8936
Draft Superseded By90/56052 DC
DescriptorsAcoustics, Acoustic measurement, Noise (environmental), Sound intensity, Production equipment, Test equipment, Sound sources, Microphones, Calibration, Testing conditions, Free-field rooms, Acoustic testing rooms, Reproducibility, Mathematical calculations, Grades (quality)
ICS17.140.01
Title in FrenchAcoustique. 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
Title in GermanAkustik. Bestimmung der Schalleistungspegel von Geraeuschquellen aus Schalldruckmessungen. Huellflaechenverfahren der Genauigkeitsklasse 2 fuer ein im wesentlichen freies Schallfeld ueber einer reflektierenden Ebene
CommitteeEH/1
ISBN0 580 23478 9
PublisherBSI
FormatA4
DeliveryNo
Pages44
File Size12.51 MB
NotesMay 2007 reprint.
Price£218.00


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