NF S31-065

NF S31-065

March 1981
Standard Current

Acoustics. Testing of architectural acoustics. Determination of sound absorption coefficient and impedance in a tube.

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Main informations

Collections

National standards and national normative documents

Publication date

March 1981

Number of pages

18 p.

Reference

NF S31-065

ICS Codes

17.140.01   Acoustic measurements and noise abatement in general

Classification index

S31-065

Print number

1 - 01/06/1984
Table of contents
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  • 1 Objet
    2
  • 1.1 But
    2
  • 1.2 Domaine d'application
    2
  • 2 Principe - Définitions
    2
  • 2.1 Principe
    2
  • 2.2 Définitions
    3
  • 3 Dispositif de mesurage
    5
  • 3.1 Tube à ondes stationnaires
    5
  • 3.2 Dispositif d'émission acoustique
    7
  • 3.3 Dispositif de mesurage des niveaux de pression acoustique
    7
  • 3.4 Dispositif de mesurage de la position du microphone
    8
  • 4 Préparation des éprouvettes - Fixation
    8
  • 4.1 Échantillonnage
    8
  • 4.2 Fixation
    8
  • 5 Conditions de mesurage
    8
  • 5.1 Fréquences de mesure
    8
  • 5.2 Centre acoustique de la sonde microphonique ou du microphone
    8
  • 5.3 Contrôle de l'équipement
    9
  • 5.4 Procédure de mesure
    9
  • 6 Présentation des résultats
    10
  • 7 Rapport d'essai
    10
  • Figures 1 à 5
    11
  • Annexe
    13
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