NF EN ISO 389-4

August 1999

Standard Current

Acoustics. Reference zero for the calibration of audiometric equipment. Part 4 : reference levels for narrow-band masking noise.

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Collections

National standards and national normative documents

Thematics

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Publication date

August 1999

Number of pages

11 p.

Reference

NF EN ISO 389-4

ICS Codes

13.140 Noise with respect to human beings

Classification index

S30-007-4

Print number

1 - 08/06/2005

International kinship

ISO 389-4:1994

European kinship

EN ISO 389-4:1998

Replaced standards (1)

NF EN 28798

February 1992

Standard Cancelled

Acoustics. Reference levels for narrow-band masking noise.

La présente norme spécifie des niveaux de référence pour l'étalonnage des bruits de masque en bande étroite présentés par conduction aérienne, au moyen d'un écouteur en audiométrie tonale. Les valeurs données sous forme de niveaux sont à ajouter aux niveaux de référence équivalents de pression acoustique liminaire des sons purs de fréquences correspondantes, quand on place l'écouteur de masquage sur le coupleur acoustique ou l'oreille artificielle approprié(e). Les données sont indiquées pour des bruits de largeur de bande d'un tiers d'octave et d'une demi-octave. Quelques remarques sur l'obtention des niveauxde référence sont données en annexe.

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