NF EN ISO 9614-1

NF EN ISO 9614-1

November 2009
Standard Current

Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1 : measurement at discrete points

Specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power level is to be determined. The one-octave, one-third-octave or band-limited weighted sound power level is calculated from the measured value. The method is applicable in situ or in special purpose test environments to any source for which a physically stationary measurement surface can be defined, and on which the noise generated by the source is stationary in time.

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Main informations

Collections

National standards and national normative documents

Publication date

November 2009

Number of pages

31 p.

Reference

NF EN ISO 9614-1

ICS Codes

17.140.01   Acoustic measurements and noise abatement in general

Classification index

S31-100-1

Print number

1 - 18/11/2009

International kinship

ISO 9614-1:1993

European kinship

EN ISO 9614-1:2009
Sumary
Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 1 : measurement at discrete points

Specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power level is to be determined. The one-octave, one-third-octave or band-limited weighted sound power level is calculated from the measured value. The method is applicable in situ or in special purpose test environments to any source for which a physically stationary measurement surface can be defined, and on which the noise generated by the source is stationary in time.

Replaced standards (1)
NF EN ISO 9614-1
June 1995
Standard Cancelled
Acoustics. Determination of sound power levels of noise sources using sound intensity. Part 1 : measurement at discrete points.

Specifies a method for measuring the component of sound intensity normal to a measurement surface which is chosen so as to enclose the noise source(s) of which the sound power level is to be determined. The one-octave, one-third-octave or band-limited weighted sound power level is calculated from the measured value. The method is applicable in situ or in special purpose test environments to any source for which a physically stationary measurement surface can be defined, and on which the noise generated by the source is stationary in time.

Table of contents
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Définitions
    2
  • 4 Généralités
    3
  • 5 Environnement acoustique
    4
  • 6 Appareillage
    5
  • 7 Installation et fonctionnement de la source
    6
  • 8 Mesurage du niveau de l'intensité acoustique normale
    6
  • 9 Calcul du niveau de puissance acoustique
    8
  • 10 Informations à consigner
    8
  • Annexe A Calcul des indicateurs de champ
    10
  • Annexe B Méthode d'obtention de la classe de précision requise
    12
  • Annexe C Effets des écoulements d'air sur le mesurage de l'intensité acoustique
    16
  • Annexe D Effet de l'absorption du son à l'intérieur de la surface de mesurage
    17
  • Annexe E Bibliographie
    18
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