EN IEC 60068-3-5:2018

SLOVENSKI STANDARD
01-junij-2018
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Environmental testing - Part 3-5: Supporting documentation and guidance - Confirmation
of the performance of temperature chambers (IEC 60068-3-5:2018)
Umweltprüfungen - Teil 3-5: Unterstützende Dokumentation und Leitfaden - Bestätigung
des Leistungvermögens von Temperaturprüfkammern (IEC 60068-3-5:2018)
Essais d'environnement - Partie 3-5: Documentation d'accompagnement et guide -
Confirmation des performances des chambres d'essai en température (IEC 60068-3-
5:2018)
Ta slovenski standard je istoveten z: EN IEC 60068-3-5:2018
ICS:
01.110 7HKQLþQDGRNXPHQWDFLMD]D Technical product
L]GHONH documentation
19.040 Preskušanje v zvezi z Environmental testing
okoljem
29.020 Elektrotehnika na splošno Electrical engineering in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60068-3-5

NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2018
ICS 19.040 Supersedes EN 60068-3-5:2002
English Version
Environmental testing - Part 3-5: Supporting documentation and
guidance - Confirmation of the performance of temperature
chambers
(IEC 60068-3-5:2018)
Essais d'environnement - Partie 3-5: Documentation Umweltprüfungen - Teil 3-5: Unterstützende Dokumentation
d'accompagnement et guide - Confirmation des und Leitfaden - Bestätigung des Leistungvermögens von
performances des chambres d'essai en température Temperaturprüfkammern
(IEC 60068-3-5:2018) (IEC 60068-3-5:2018)
This European Standard was approved by CENELEC on 2018-02-27. 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, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60068-3-5:2018 E

European foreword
The text of document 104/759/FDIS, future edition 2 of IEC 60068-3-5, 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 IEC 60068-3-5:2018.

The following dates are fixed:
(dop) 2018-11-27
• 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) 2021-02-27
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60068-3-5:2002.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 60068-3-5:2018 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.
IEC 60068-3-6 NOTE Harmonized as EN 60068-3-6.
IEC 60584-1 NOTE Harmonized as EN 60584-1.
IEC 60751 NOTE Harmonized as EN 60751.
ISO 10012 NOTE Harmonized as EN ISO 10012.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60068-2 series Environmental testing - Part 2-1: EN 60068-2 series
Tests - Test A: Cold
IEC 60068-3-7 -  Environmental testing - Part 3-7: EN 60068-3-7 -
Supporting documentation and guidance -
Measurements in temperature chambers
for tests A and B (with load)
IEC 60068-3-11 -  Environmental testing - Part 3-11: EN 60068-3-11 -
Supporting documentation and guidance -
Calculation of the uncertainty of conditions
in climatic test chambers
IEC 60068-3-5 ®
Edition 2.0 2018-01
INTERNATIONAL
STANDARD
Environmental testing –
Part 3-5: Supporting documentation and guidance – Confirmation of the

performance of temperature chambers

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 19.040 ISBN 978-2-8322-5207-9

– 2 – IEC 60068-3-5:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Measuring chamber performances . 8
4.1 Test area environment . 8
4.2 Temperature measurement system . 8
4.3 Temperature chamber test specimens . 8
4.4 Specified location of temperature sensors in working space . 9
4.5 Measurement method . 10
4.5.1 General . 10
4.5.2 Achieved temperature . 10
4.5.3 Temperature stabilization . 10
4.5.4 Temperature fluctuation . 11
4.5.5 Temperature gradient . 12
4.5.6 Temperature variation in space . 12
4.5.7 Temperature rate of change . 13
4.6 Standard temperature sequence . 14
5 Information to be given in the performance test report . 14
Bibliography . 16

Figure 1 – Working space . 7
Figure 2 – Example of temperature differences . 8
Figure 3 – Location sensors for temperature chambers up to 2 000 l . 9
Figure 4 – Location of minimal additional sensors for temperature chambers
over 2 000 l . 9
Figure 5 – Example of achieved temperature . 10
Figure 6 – Example of temperature stabilization for chambers up to 2 000 l . 11
Figure 7 – Example of temperature fluctuation . 11
Figure 8 – Example of temperature gradient for chambers up to 2 000 l . 12
Figure 9 – Example of temperature gradient for chambers <2 000 L . 13
Figure 10 – Example of temperature rate of change . 14

Table 1 – Practical dimensions . 7

IEC 60068-3-5:2018 © IEC 2018 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 3-5: Supporting documentation and guidance –
Confirmation of the performance of temperature chambers

FOREWORD
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International Standard IEC 60068-3-5 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 2001. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect
...