EN 60068-2-65:2013

Environmental testing - Part 2-65: Tests - Test Fg: Vibration - Acoustically induced method

IEC 60068-2-65:2013 provides standard procedures and guidance for conducting acoustic tests in order to determine the ability of a specimen to withstand vibration caused by a specified sound-pressure level environment to which it is, or is liable to be, subjected. This second edition cancels and replaces the second edition, published in 1993, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - 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.

Umgebungseinflüsse - Teil 2-65: Prüfverfahren - Prüfung Fg: Schwingen - Akustisch angeregt

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

La CEI 60068-2-65:2013 fournit des méthodes normalisées et un guide pour la conduite d'essais acoustiques afin de déterminer l'aptitude d'un spécimen à résister à des vibrations provoquées par un environnement de niveau de pression acoustique spécifié auquel il est, ou est susceptible d'être, exposé. Cette deuxième édition annule et remplace la deuxième édition, publiée en 1993, dont elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - des modifications techniques et rédactionnelles mineures ont été faites dans toute la norme, tel qu'il a été demandé à l'origine par le Comité national allemand; - conformément aux commentaires émis au stade CD, en particulier ceux du Comité national britannique, des ajouts techniques et éditoriaux significatifs ont été réalisés dans la norme pour l'essai acoustique employant le technique du tube à ondes progressives.

Okoljsko preskušanje - 2-65. del: Preskusi - Preskus Fg: Vibracije - Metode, povzročene z zvokom

Ta del IEC 60068 ponuja standardne postopke in smernice za izvajanje akustičnih testov z namenom določanja vzdržljivosti vzorca na vibracije, ki jih povzroči določeno okolje z ravnjo zvočnega tlaka, ki ji je ali mora biti podvrženo. Za okolja z ravnjo zvočnega tlaka, ki je nižja od 120 dB, akustični testi običajno niso potrebni. Ta standard določa mehanične slabosti in/ali zmanjšanje zmogljivosti vzorcev in uporabo teh informacij, v povezavi z ustreznimi specifikacijami, z namenom odločanja o sprejemljivosti njihove uporabe. Testne metode se lahko uporabljajo tudi za določanje mehanske robustnosti ali odpornosti proti utrujanju vzorcev.
Za izvajanje testov in merjenje ravni zvočnega tlaka v polju akustičnega šuma sta opisana dva postopka ob upoštevanju potrebe za merjenje vibracijskega odziva na določeni točki vzorca. Vsebuje tudi izbiro okolja akustičnega šuma, spektra, raven zvočnega tlaka in čas izpostavljenosti. Metoda progresivnega vala v cevi je pomembna za material, kjer aerodinamična turbulenca vzbuja del ali celotno zunanjo površino. Med takšne uporabe sodijo sestavi panelov letal, kjer je vzbujanje prisotno samo na eni strani. Metoda odbijajoče komore je pomembna tam, kjer je bolj priporočljivo sprožiti vibracijo na celotni zunanji površini opreme s porazdeljenim vzbujanjem kot na določeni točki prek elektrodinamičnih stresalnikov.

General Information

• Status: Published
• Publication Date: 02-May-2013
• Withdrawal Date: 12-Mar-2016
• ICS: 19.040 - Environmental testing
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: CLC/SR 104 - Environmental conditions, classification and methods of test
• Drafting Committee: IEC/TC 104 - IEC_TC_104
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 03-May-2013
• Completion Date: 03-May-2013
• Ref Project: SIST EN 60068-2-65:2013 - Environmental testing - Part 2-65: Tests - Test Fg: Vibration - Acoustically induced method

Relations

• Replaces: EN 60068-2-65:1994 - Environmental testing - Part 2: Methods of test - Test Fg: Vibration, acoustically induced
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2013
1DGRPHãþD
SIST EN 60068-2-65:2001
2NROMVNRSUHVNXãDQMHGHO3UHVNXVL3UHVNXV)J9LEUDFLMH0HWRGH
SRY]URþHQH]]YRNRP
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
...