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I.S. EN ISO 389-4:1999

Current
Current

The latest, up-to-date edition.

ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1999

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Specifications
Annex A (informative) Notes on the derivation of the reference
                      levels
Annex B (informative) Bibliography

Defines reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry.

DevelopmentNote
Supersedes I.S. EN 28798. (04/2005)
DocumentType
Standard
Pages
18
PublisherName
National Standards Authority of Ireland
Status
Current
Supersedes

IEC 60645-1:2017 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
ISO 389:1991 Acoustics Standard reference zero for the calibration of pure-tone air conduction audiometers
IEC 60126:1973 IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
IEC 60711:1981 Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts
EN ISO 389-2 : 1996 Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones (ISO 389-2:1994)
IEC 60318:1970 An IEC artificial ear, of the wide band type, for the calibration of earphones used in audiometry
ISO 389-2:1994 Acoustics Reference zero for the calibration of audiometric equipment Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
ISO 389-3:2016 Acoustics Reference zero for the calibration of audiometric equipment Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
EN ISO 389 : 1995 ACOUSTICS - STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE-TONE AIR CONDUCTION

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