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I.S. EN ISO 389-3:2016

Current

Current

The latest, up-to-date edition.

ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 3: REFERENCE EQUIVALENT THRESHOLD VIBRATORY FORCE LEVELS FOR PURE TONES AND BONE VIBRATORS (ISO 389-3:2016)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2016

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National Foreword
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Reference equivalent threshold vibratory
  force levels (RETVFL)
5 Test conditions and requirements
Annex A (informative) - Note on the derivation of
        RETVFL values
Annex B (informative) - Guidance on the application
        of the reference zero to the calibration of bone-conduction
        audiometers
Annex C (informative) - Differences in reference equivalent
        threshold vibratory force levels between forehead and
        mastoid location of vibrator
Annex D (informative) - Bone-conduction threshold of hearing
        for frequencies below 250 Hz
Bibliography

Defines the following data applicable to the calibration of bone vibrators for pure-tone bone-conduction audiometry: a) reference equivalent threshold vibratory force levels (RETVFL), corresponding to the threshold of hearing of young otologically normal persons by bone-conduction audiometry; b) essential characteristics of the bone vibrator and the method of coupling to the test subject, and to the mechanical coupler; and c) essential characteristics of the masking noise and the baseline masking noise level applied to the ear not under test.

DevelopmentNote
Supersedes I.S. EN 27566. (04/2005)
DocumentType
Standard
Pages
30
PublisherName
National Standards Authority of Ireland
Status
Current
Supersedes

IEC 60318-6:2007 Electroacoustics - Simulators of human head and ear - Part 6: Mechanical coupler for the measurement on bone vibrators
ISO 389-4:1994 Acoustics Reference zero for the calibration of audiometric equipment Part 4: Reference levels for narrow-band masking noise
ANSI S3.13 : 1987 MECHANICAL COUPLER FOR MEASUREMENT OF BONE VIBRATORS
ISO 4869-1:1990 Acoustics Hearing protectors Part 1: Subjective method for the measurement of sound attenuation
ISO 389-8:2004 Acoustics — Reference zero for the calibration of audiometric equipment — Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones
ISO 389-1:1998 Acoustics Reference zero for the calibration of audiometric equipment Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
ISO 8253-1:2010 Acoustics Audiometric test methods Part 1: Pure-tone air and bone conduction audiometry
IEC 61260-1:2014 Electroacoustics - Octave-band and fractional-octave-band filters - Part 1: Specifications
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

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