SSH EN ISO 389-4:2004

Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994)

Publication date: Nov 1, 2004

General information

Current stage: 60.60 Effective date: Nov 1, 2004

Originator: DPS

Owner: DPS/KT 211

Type: European Norm

ICS: 13.140

Languages: English

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Status: Published

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Scope

Specifies reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry. The data are given in terms of levels to be added to the reference equivalent threshold sound pressure levels for the corresponding pure-tone frequencies. Data are given for noise bandwidths of one-third and one-half octaves.

Life cycle

NOW

PUBLISHED
SSH EN ISO 389-4:2004
60.60 Standard published
Nov 1, 2004

Related project

Adopted from EN ISO 389-4:1998

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