IEC 60068-2-53:2010

IEC 60068-2-53 ®
Edition 2.0 2010-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-53: Tests and guidance – Combined climatic (temperature/humidity)
and dynamic (vibration/shock) tests

Essais d’environnement –
Partie 2-53: Essais et guide – Essais combinés climatiques
(température/humidité) et dynamiques (vibrations/chocs)

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IEC 60068-2-53 ®
Edition 2.0 2010-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-53: Tests and guidance – Combined climatic (temperature/humidity)
and dynamic (vibration/shock) tests

Essais d’environnement –
Partie 2-53: Essais et guide – Essais combinés climatiques
(température/humidité) et dynamiques (vibrations/chocs)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
Q
CODE PRIX
ICS 19.040 ISBN 978-2-88910-039-2
– 2 – 60068-2-53 © IEC:2010
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references .6
3 Testing .6
3.1 General .6
3.2 Temperature information .7
3.3 Dynamic test information .8
3.4 Initial measurement and functional performance test .8
3.5 Operating condition of specimen .8
3.6 Mechanical conditioning of specimen .8
4 Final measurements .8
5 Information to be given in the relevant specification .8
6 Information to be given in the test report .9
Annex A (informative) Examples of test sequences.11
Annex B (informative) Guidance on combined climatic and dynamic testing .15
Bibliography.17

Figure A.1 – Example of test sequence with cold or dry heat testing .11
Figure A.2 – Example of test sequence with slow temperature .12
Figure A.3 – Example of test sequence with damp heat, cyclic.13
Figure A.4 – Example of test sequence with damp heat, constant .14
Figure B.1 – Example for a typically test set-up .16

Table 1 – Allowable combinations of IEC standards .7

60068-2-53 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 2-53: Tests and guidance – Combined climatic
(temperature/humidity) and dynamic (vibration/shock) tests

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-
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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
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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 60068-2-53 has been prepared by IEC technical committee 104:
Environmental conditions, classification and methods of test.
This second edition cancels and replaces
– the first edition of IEC 60068-2-50, published in 1983,
– the first edition of IEC 60068-2-51, published in 1983 and
– the first edition of 60068-2-53, published in 1984
and constitutes a technical revision.
The main changes with respect to the previous editions of all three standards cited above is to
update and group tests. In this way it allows for the possibility to use different kinds of
vibration excitation – sine, random or mixed mode – or shocks, with different tests for climatic
conditions – cold, dry heat, change of temperature or constant and cyclic damp heat.

– 4 – 60068-2-53 © IEC:2010
The text of this standard is based on the following documents:
FDIS Report on voting
104/499/FDIS 104/514/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.
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.
60068-2-53 © IEC:2010 – 5 –
INTRODUCTION
Equipment and components are required to function without significant reduction in
performance when subjected to different environmental parameters.
The type and severity of the environmental parameters depend on the operational, transport
and storage environments to which the equipment and components are subjected. The
environmental effects on the performance of equipments in the tropics and subtropics are
totally different from those in arctic regions. Individual parameters cause a variety of different
and overlapping effects on the equipment and components.
The manufacturer attempts to ensure, and the user expects, that equipment and components will
survive the environments to which they will be subjected throughout their useful life. This
expectation can be assessed by exposure of the specimen to a range of simulated environmental
parameters controlled in the laboratory. The severity of the environmental parameters is often
increased to obtain meaningful results in a relatively short period of time. This allows
assessment of the likely effects of applied environmental conditions.
The combination of temperature, humidity and vibration occurs especially in the domains of
autom
...