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CENELEC
EN 60318-3:2015

EN 60318-3:2015

Current

Current

The latest, up-to-date edition.

Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry

Published date

02-13-2015

Publisher

European Committee for Standards - Electrical

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
5 Coupling of earphone to acoustic coupler
6 Calibration
7 Maximum permitted uncertainty of measurements
Bibliography
Annex ZA (normative) - Normative references to
         International publications with their
         corresponding European publications

IEC 60318-3:2014 specifies an acoustic coupler for the measurement of supra-aural audiometric earphones in the frequency range from 125 Hz to 8 000 Hz. The sound pressure developed by an earphone is not, in general, the same in the coupler as in a person's ear. However, the acoustic coupler can be used as an objective and reproducible means of measuring the output of supra-aural earphones. It can be used for specifying reference equivalent threshold sound pressure levels for the calibration of audiometers. This second edition cancels and replaces the first edition published in 1998 and constitutes a technical revision which includes the following significant technical changes with respect to the previous edition:- adjustment of terms and wording to the other parts of IEC 60318;- introduction of maximum permitted uncertainties;- and revised requirements for static pressure equalization.Keywords: electroacoustics, deafness, hearing aids

Committee
CLC/SR 29
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current

EN 60645-3:2007 Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration
CEI EN 60645-1 : 2016 ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 1: EQUIPMENT FOR PURE-TONE AUDIOMETRY
I.S. EN 60645-1:2017 ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 1: EQUIPMENT FOR PURE-TONE AND SPEECH AUDIOMETRY
CEI EN 60645-3 : 2008 ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 3: TEST SIGNALS OF SHORT DURATION
BS EN 60645-1:2017 Electroacoustics. Audiometric equipment Equipment for pure-tone and speech audiometry
BS EN 60645-3:2007 Electroacoustics. Audiometric equipment Test signals of short duration
I.S. EN 60645-3:2007 ELECTROACOUSTICS - AUDIOMETRIC EQUIPMENT - PART 3: TEST SIGNALS OF SHORT DURATION
UNE-EN 60645-1:2015 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone audiometry
EN 60645-1:2017 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry

ANSI/ASA S3.7 : 2016 METHOD FOR MEASUREMENT AND CALIBRATION OF EARPHONES
IEC 61094-4:1995 Measurement microphones - Part 4: Specifications for working standard microphones
EN 61094-1:2000 Measurement microphones - Part 1: Specifications for laboratory standard microphones
IEC 61094-1:2000 Measurement microphones - Part 1: Specifications for laboratory standard microphones
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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