EN 60068-2-65:2013

SLOVENSKI STANDARD
01-julij-2013
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SIST EN 60068-2-65:2001
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Environmental testing - Part 2-65: Tests - Test Fg: Vibration - Acoustically induced
method
Umgebungseinflüsse - Teil 2-65: Prüfverfahren - Prüfung Fg: Schwingen - akustisch
angeregt
Essais d’environnement - Partie 2-65: Essais - Essai Fg: Vibrations - Méthode induite
acoustiquement
Ta slovenski standard je istoveten z: EN 60068-2-65:2013
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60068-2-65
NORME EUROPÉENNE
May 2013
EUROPÄISCHE NORM
ICS 19.040; 29.020 Supersedes EN 60068-2-65:1994

English version
Environmental testing -
Part 2-65: Tests -
Test Fg: Vibration -
Acoustically induced method
(IEC 60068-2-65:2013)
Essais d’environnement -  Umgebungseinflüsse -
Partie 2-65: Essais - Teil 2-65: Prüfverfahren -
Essai Fg: Vibrations - Prüfung Fg: Schwingen -
Méthode induite acoustiquement akustisch angeregt
(CEI 60068-2-65:2013) (IEC 60068-2-65:2013)

This European Standard was approved by CENELEC on 2013-03-13. 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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management Centre 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60068-2-65:2013 E
Foreword
The text of document 104/591/FDIS, future edition 2 of IEC 60068-2-65, prepared by IEC TC 104
"Environmental conditions, classification and methods of test" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN 60068-2-65:2013.
The following dates are fixed:
(dop) 2013-12-13
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-03-13
standards conflicting with the

document have to be withdrawn
This document supersedes EN 60068-2-65:1994.
65:1994:
– minor technical and editorial changes were made throughout the document as originally requested by
the DE National Committee;
– following comments at the CD stage, particularly from the UK National Committee, significant technical
and editorial additions were made to the standard for acoustic testing employing the progressive wave
tube technique.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 60068-2-65:2013 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:
IEC 60068-1 NOTE  Harmonized as EN 60068-1.
ISO 266 NOTE  Harmonized as EN ISO 266.

- 3 - EN 60068-2-65:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 61672-1 - Electroacoustics - Sound level meters - EN 61672-1 -
Part 1: Specifications
ISO/IEC 17025 2005 General requirements for the competence of EN ISO/IEC 17025 2005
testing and calibration laboratories

IEC 60068-2-65 ®
Edition 2.0 2013-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-65: Tests – Test Fg: Vibration – Acoustically induced method

Essais d’environnement –
Partie 2-65: Essais – Essai Fg: Vibrations – Méthode induite acoustiquement

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 19.040; 29.020 ISBN 978-2-83220-641-6

– 2 – 60068-2-65 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols and abbreviations. 7
3.1 Terms and definitions . 7
3.2 Symbols and abbreviations . 11
4 Acoustic environments and requirements for testing . 11
4.1 Acoustic environment for testing . 11
4.1.1 General . 11
4.1.2 Reverberant field . 13
4.1.3 Progressive wave field . 14
4.1.4 Cavity resonance . 14
4.1.5 Standing wave . 14
4.2 Sound sources . 14
4.3 Measuring apparatus . 14
4.3.1 General . 14
4.3.2 Acoustic measurements . 14
4.3.3 Vibration response measurements . 15
4.3.4 Analysis of results . 15
4.4 Requirements for testing . 15
4.4.1 Type of facility . 15
4.4.2 Mounting . 15
4.4.3 Specimen instrumentation . 16
4.4.4 Preparation of test control . 17
5 Recommended severities . 18
6 Preconditioning . 18
7 Initial measurements . 19
8 Testing . 19
8.1 Normal testing . 19
8.2 Accelerated testing . 19
9 Intermediate measurements . 19
10 Recovery . 19
11 Final measurements . 19
12 Information to be given in the relevant specification . 20
13 Information to be given in the test report . 20
Annex A (informative) Guidance for the test requirements. 22
Bibliography . 30

Figure 1 – Third-octave band spectrum for aeronautical applications . 12
Figure 2 – Octave band spectra for fans derived from [4] . 13
Figure 3 – Octave band spectrum for noisy industrial machinery derived from [4] . 13
Figure 4 – Typical locations of microphone checkpoints (1 – 6) on a fictitious surface
around a specimen . 17

60068-2-65 © IEC:2013 – 3 –
Figure A.1 – Typical microphone arrangement around a specimen in a reverberation
chamber. 22
Figure A.2 – Typical microphone checkpoint arrangement around a long cylindrical
specimen . 25

Table 1 – Tolerances for acoustic measurement . 14
Table 2 – Overall sound pressure level and duration of exposure . 18
Table A.1 – Octave band/room volume relationship . 23
Table A.2 – Reverberation room, ratios of dimensions . 23
Table A.3 – Examples of sound sources with waveforms and typical power outputs. 28
Table A.4 – Typical OASPL and exposure durations . 28

– 4 – 60068-2-65 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 2-65: Tests –
Test Fg: Vibration –
Acoustically induced method
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
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
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
interested IEC National Committees.
3) IEC Publications have the form of r
...