IEC 60068-2-55
Edition 2.0 2013-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
IEC 60068-2-55:2013
®
Environmental testing –
Part 2-55: Tests – Test Ee and guidance – Loose cargo testing including bounce
Essais d’environnement –
Partie 2-55: Essais – Essai Ee et guide – Essais de chargement sans arrimage y
compris l’essai de rebondissement
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
IEC 60068-2-55
Edition 2.0 2013-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-55: Tests – Test Ee and guidance – Loose cargo testing including bounce
Essais d’environnement –
Partie 2-55: Essais – Essai Ee et guide – Essais de chargement sans arrimage y
compris l’essai de rebondissement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
R
ICS 19.040; 29.020
PRICE CODE
CODE PRIX
ISBN 978-2-83220-644-7
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
®
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
– 2 – 60068-2-55 © IEC:2013
CONTENTS
FOREWORD ........................................................................................................................... 3
INTRODUCTION ..................................................................................................................... 5
1 Scope ............................................................................................................................... 6
2 Normative references ....................................................................................................... 6
3 Terms and definitions ....................................................................................................... 6
4 Requirements for the test apparatus ................................................................................. 7
4.1 General test description .......................................................................................... 7
4.2 Characteristics of the testing machine ..................................................................... 7
4.3 Motion of the platform .............................................................................................. 7
4.4 Tolerances on the horizontal accuracy of platform ................................................... 8
4.5 Control .................................................................................................................... 8
4.6 Mounting ................................................................................................................. 8
4.7 Horizontal motion of specimen................................................................................. 8
5 Severities ......................................................................................................................... 8
5.1 Severity for sinusoidal motion of the platform .......................................................... 8
5.2 Severity for random motion of the platform .............................................................. 9
5.3 Severity for mixed mode motion of the platform ....................................................... 9
5.4 Severity for use of special bounce testing machines ................................................ 9
6 Preconditioning ................................................................................................................ 9
7 Initial measurements and functional performance test ...................................................... 9
8 Testing ............................................................................................................................. 9
9 Recovery ........................................................................................................................ 10
10 Final measurements ....................................................................................................... 10
11 Information to be given in the relevant specification........................................................ 11
12 Information to be given in the test report ........................................................................ 11
Annex A (normative) Guidance ............................................................................................ 12
Annex B (informative) Comparison amongst impact tests ..................................................... 17
Bibliography .......................................................................................................................... 18
Figure A.1 – Typical arrangement of barriers and typical reference point positions ............... 13
Figure A.2 – Basic drive motion of a mechanical bounce tester ............................................. 14
Table B.1 – Comparison of different impact tests .................................................................. 17
60068-2-55 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 2-55: Tests – Test Ee and guidance –
Loose cargo testing including bounce
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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6) All users should ensure that they have the latest edition of this publication.
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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 60068-2-55 has been prepared by IEC technical committee 104:
Environmental conditions, classification and methods of test.
This second edition cancels and replaces the first edition, published in 1987, and constitutes
a technical revision.
The main changes with respect to the previous edition are listed below:
This new edition allows for loose cargo testing in a more general sense. The test is no longer
aligned with a special testing machine but allows for use of any suitable equipment such as
electrodynamic or servo-hydraulic shaker tables. Moreover, sinusoidal and random vibration
can be used. The previous rotation table motions are included in Annex A as historical
methods.
– 4 – 60068-2-55 © IEC:2013
The text of this standard is based on the following documents:
FDIS Report on voting
104/592/FDIS 104/598/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
It has the status of a basic safety publication in accordance with IEC Guide 104.
This standard should be used in conjunction with IEC 60068-1.
A list of all the parts in the IEC 60068 series, under the general title Environmental testing,
can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
