EN 60318-4:2010

SLOVENSKI STANDARD
01-september-2010
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Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for
the measurement of earphones coupled to the ear by means of ear inserts (IEC 60318-
4:2010)
Akustik - Simulatoren des menschlichen Kopfes und Ohres - Teil 4: Simulator für den
abgeschlossenen Gehörgang zur Messung an mittels Ohreinsätzen an das Ohr
angekoppelten Ohrhörern (IEC 60318-4:2010)
Electroacoustique - Simulateurs de tête et d'oreille humaines - Partie 4: Simulateur
d'oreille occluse pour la mesure des écouteurs couplés à l'oreille par des embouts (CEI
60318-4:2010)
Ta slovenski standard je istoveten z: EN 60318-4:2010
ICS:
13.140 Vpliv hrupa na ljudi Noise with respect to human
beings
17.140.50 Elektroakustika Electroacoustics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60318-4
NORME EUROPÉENNE
May 2010
EUROPÄISCHE NORM
ICS 17.140.50 Supersedes HD 443 S1:1983

English version
Electroacoustics -
Simulators of human head and ear -
Part 4: Occluded-ear simulator for the measurement of earphones coupled
to the ear by means of ear inserts
(IEC 60318-4:2010)
Electroacoustique -  Akustik -
Simulateurs de tête et d'oreille humaines - Simulatoren des menschlichen Kopfes
Partie 4: Simulateur d'oreille occluse und Ohres -
pour la mesure des écouteurs couplés Teil 4: Simulator für den abgeschlossenen
à l'oreille par des embouts Gehörgang zur Messung an mittels
(CEI 60318-4:2010) Ohreinsätzen an das Ohr angekoppelten
Ohrhörern
(IEC 60318-4:2010)
This European Standard was approved by CENELEC on 2010-05-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60318-4:2010 E
Foreword
The text of document 29/662/CDV, future edition 1 of IEC 60318-4, prepared by IEC TC 29,
Electroacoustics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60318-4 on 2010-05-01.
This standard supersedes HD 443 S1:1983.
The main changes with respect to the previous edition are listed below:
− extension of the usable frequency range to 100 Hz – 16 000 Hz;
− addition of values of maximum permitted expanded uncertainties to all tolerances.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60318-4:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
[1]  ISO 389-2 NOTE  Harmonized as EN ISO 389-2.
[2]  ISO 389-5 NOTE  Harmonized as EN ISO 389-5.
[3]  ISO 389-6 NOTE  Harmonized as EN ISO 389-6.
__________
- 3 - EN 60318-4:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 61094-4 - Measurement microphones - EN 61094-4 -
Part 4: Specifications for working standard
microphones
ISO/IEC Guide 98-3 - Uncertainty of measurement - - -
Part 3: Guide to the expression of uncertainty
in measurement (GUM:1995)
IEC 60318-4 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electroacoustics – Simulators of human head and ear –
Part 4: Occluded-ear simulator for the measurement of earphones coupled to
the ear by means of ear inserts

Électroacoustique – Simulateurs de tête et d’oreille humaines –
Partie 4: Simulateur d'oreille occluse pour la mesure des écouteurs couplés à
l'oreille par des embouts
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 17.140.50 ISBN 2-8318-1076-6
– 2 – 60318-4 © IEC:2010
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references .5
3 Terms and definitions .5
4 Construction .7
4.1 General .7
4.2 Principal cavity dimensions .7
4.3 Calibrated pressure-type microphone .7
4.4 Pressure equalization.8
4.5 Acoustic transfer impedance level .8
4.6 Example of design.8
5 Calibration.9
5.1 Atmospheric reference conditions.9
5.2 Calibration method .9
6 Coupling of earphones and hearing aids to the occluded-ear simulator.9
6.1 Audiometers with insert earphones.9
6.2 In-the-ear hearing aids (custom made) .9
6.3 Hearing aids with insert earphone .10
6.4 Behind-the-ear and spectacle hearing aids.11
6.5 Modular in-the-ear hearing aids.12
7 Maximum permitted expanded uncertainty of measurements .14
Annex A (informative) Example of one specific design of occluded-ear simulator .16
Annex B (informative) Principle of calibration for the occluded-ear simulator.17
Bibliography.19

Figure 1 – Connection of an in-the-ear hearing aid to the occluded-ear simulator .10
Figure 2 – Connection of an insert earphone to the occluded-ear simulator .11
Figure 3 – Connection of a behind-the-ear hearing aid to the occluded-ear simulator.13
Figure 4 – Connection of an in-the-ear hearing aid (modular type) to the occluded-ear
simulator.14
Figure A.1 – Example of one specific design of occluded-ear simulator.16

Table 1 – Level of the acoustic transfer impedance modulus and associated tolerances .8
Table 2 – Values of maximum permitted expanded uncertainty U for basic type
max
approval measurements.15
Table B.1 – Sound pressure level relative to that at the reference frequency 500 Hz
(L (f)– L (500)) for the nominal effective volume (1 260 mm ) of the occluded-ear
p p
simulator, and associated tolerances .18

60318-4 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROACOUSTICS –
SIMULATORS OF HUMAN HEAD AND EAR –

Part 4: Occluded-ear simulator for the measurement
of earphones coupled to the ear by means of ear inserts

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60318-4 has been prepared by IEC technical committee 29:
Electroacoustics.
This first edition of IEC 60318-4 cancels and replaces IEC 60711, published in 1981 and
constitutes a technical revision.
The main changes with respect to the prev
...