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Document ID (ISN)68899
CIS number 97-639
Year 1995
Convention or series no. ISO 3746:1995
Title Acoustics - Determination of sound power levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane
Original title Acoustique - Détermination des niveaux de puissance acoustique émis par les sources de bruit à partir de la pression acoustique - Méthode de contrôle employant une surface de mesure enveloppante au-dessus d'un plan réfléchissant [in French]
Bibliographic information International Organization for Standardization, Case postale 56, 1211 Genève 20, Switzerland, Aug. 1995. v, 27p. Illus. 12 ref.
Abstract This international standard specifies a method for measuring the sound pressure levels on a measurement surface enveloping the source 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 three accuracy. This standard is applicable to noise sources of any type and size (e.g. device, machine, component, sub-assembly). The test environment that is applicable for measurements made in accordance with this international standard may be located indoors or outdoors, with one or more reflecting planes present, meeting specified requirements.
Descriptors (primary) ISO; noise level measurement; acoustics; sound power
Descriptors (secondary) machinery; office equipment; noise control; standard; description of technique; bibliography; noise measurement
Document type F - Information notes, codes of practice, standards
Country / State or ProvinceISO
Subject(s) Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Noise