EN IEC 60068-3-4:2023
(Main)Environmental testing - Part 3-4: Supporting documentation and guidance - Damp heat tests
Environmental testing - Part 3-4: Supporting documentation and guidance - Damp heat tests
IEC 60068-3-4:2023 is available as IEC 60068-3-4:2023 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60068-3-4:2023 provides the necessary information and the basic principles of the effect of humidity in the context of environmental testing to assist in preparing relevant specifications, such as standards for components or equipment. Furthermore, information is provided on operating climatic test chambers. 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 to the previous edition: a) the requirements for distilled and deionized water have been revised; b) recommendations for the cleaning procedure of test chambers have been included; c) humidification systems (ultrasonic humidifiers and atomizers) have been added; d) the description of water penetration mechanisms has been refined.
Umgebungseinflüsse - Teil 3-4: Unterstützende Dokumentation und Leitfaden - Prüfungen mit feuchter Wärme
Essais d'environnement - Partie 3-4: Documentation d'accompagnement et recommandations - Essais de chaleur humide
IEC 60068-3-4:2023 est disponible sous forme de IEC 60068-3-4:2023 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60068-3-4:2023 contient les informations nécessaires et les principes de base concernant les effets de l’humidité dans le contexte des essais d'environnement pour fournir un appui à l'élaboration des spécifications pertinentes (normes pour les composants ou les matériels, par exemple). Des informations relatives au fonctionnement des chambres climatiques d'essai sont également données. Cette deuxième édition annule et remplace la première édition parue en 2001. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) les exigences relatives à l'eau distillée et à l'eau déionisée ont été révisées; b) des recommandations concernant la procédure de nettoyage des chambres d'essai ont été introduites; c) des systèmes d'humidification (humidificateurs à ultrasons et atomiseurs) ont été ajoutés; d) la description des mécanismes de pénétration d'eau a été affinée.
Okoljsko preskušanje - 3-4. del: Podporna dokumentacija in navodila - Vlažni toplotni preskusi (IEC 60068-3-4:2023)
Ta del standarda IEC 60068 zajema potrebne informacije in osnovna načela učinka vlažnosti v okviru okoljskega preskušanja za pomoč pri pripravi ustreznih specifikacij, kot so standardi za sestavne dele ali opremo. Podane so tudi informacije o delovanju komor za klimatsko preskušanje.
Namen tega dokumenta je predstaviti podporno dokumentacijo in navodila za nabor vlažnih toplotnih preskusov, ki jih je, kadar tako določa ustrezna specifikacija, mogoče uporabiti za izkazovanje zmogljivosti opreme, za katero se zahteva vlažno toplotno preskušanje, katerega glavni cilj je doseganje kvalifikacije. Te informacije in osnovna načela so namenjena za pomoč pri izbiranju ustreznih preskusov in zahtevnosti preskušanja za določene izdelke in v nekaterih primerih vrst uporabe.
Cilj vlažnih toplotnih preskusov je določiti sposobnost izdelkov, da vzdržijo pritiske, ki se pojavijo v okolju z visoko relativno vlažnostjo s kondenzacijo ali brez nje, in s posebnim poudarkom na različnih električnih in mehanskih značilnostih. Vlažne toplotne preskuse je mogoče uporabiti za preverjanje odpornosti preskušanca na nekatere oblike napada korozije.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2024
Nadomešča:
SIST EN 60068-3-4:2002
Okoljsko preskušanje - 3-4. del: Podporna dokumentacija in navodila - Vlažni
toplotni preskusi (IEC 60068-3-4:2023)
Environmental testing - Part 3-4: Supporting documentation and guidance - Damp heat
tests (IEC 60068-3-4:2023)
Umweltprüfungen - Teil 3-4: Unterstützende Dokumentation und Leitfaden - Prüfungen
mit feuchter Wärme (IEC 60068-3-4:2023)
Essais d'environnement - Partie 3-4: Documentation d'accompagnement et
recommandations - Essais de chaleur humide (IEC 60068-3-4:2023)
Ta slovenski standard je istoveten z: EN IEC 60068-3-4:2023
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 IEC 60068-3-4
NORME EUROPÉENNE
EUROPÄISCHE NORM September 2023
ICS 19.040; 29.020 Supersedes EN 60068-3-4:2002
English Version
Environmental testing - Part 3-4: Supporting documentation and
guidance - Damp heat tests
(IEC 60068-3-4:2023)
Essais d'environnement - Partie 3-4: Documentation Umgebungseinflüsse - Teil 3-4: Unterstützende
d'accompagnement et recommandations - Essais de Dokumentation und Leitfaden - Prüfungen Feuchte Wärme
chaleur humide (IEC 60068-3-4:2023)
(IEC 60068-3-4:2023)
This European Standard was approved by CENELEC on 2023-08-03. 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.
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© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60068-3-4:2023 E
European foreword
The text of document 104/985/FDIS, future edition 2 of IEC 60068-3-4, 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 60068-3-4:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-05-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-08-03
document have to be withdrawn
This document supersedes EN 60068-3-4:2002 and all of its amendments and corrigenda (if any).
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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60068-3-4:2023 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 standard indicated:
IEC 60068-1 NOTE Approved as EN 60068-1
IEC 60068-2-1 NOTE Approved as EN 60068-2-1
IEC 60068-2-10 NOTE Approved as EN 60068-2-10
IEC 60068-2-14 NOTE Approved as EN 60068-2-14
IEC 60068-2-17 NOTE Approved as EN 60068-2-17
IEC 60068-2-30 NOTE Approved as EN 60068-2-30
IEC 60068-2-38 NOTE Approved as EN IEC 60068-2-38
IEC 60068-2-39 NOTE Approved as EN 60068-2-39
IEC 60068-2-66 NOTE Approved as EN 60068-2-66
IEC 60068-2-67 NOTE Approved as EN 60068-2-67
IEC 60068-2-78 NOTE Approved as EN 60068-2-78
IEC 60721-2-1 NOTE Approved as EN 60721-2-1
IEC 60068-3-4 ®
Edition 2.0 2023-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 3-4: Supporting documentation and guidance – Damp heat tests
Essais d'environnement –
Partie 3-4: Documentation d'accompagnement et recommandations – Essais de
chaleur humide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.040, 29.020 ISBN 978-2-8322-7135-3
– 2 – IEC 60068-3-4:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Procedures for the production and control of humidity . 7
4.1 General . 7
4.2 Injection of water (spraying) . 7
4.3 Injection of water vapour (steam) . 7
4.4 Saturation type . 8
4.5 Surface evaporation . 8
4.6 Aqueous solutions. 8
4.7 Dehumidification . 8
4.8 Control of humidity . 8
5 Physical appearance of the effects of humidity . 8
5.1 General . 8
5.2 Condensation . 9
5.3 Adsorption . 9
5.4 Absorption . 9
5.5 Diffusion . 9
6 Acceleration of tests . 10
6.1 General . 10
6.2 Acceleration factor . 10
7 Comparison of steady-state and cyclic tests . 10
7.1 Test C: Damp heat, steady-state . 10
7.2 Test Db: Damp heat, cyclic test . 11
7.3 Sequences of tests and composite tests . 11
8 Influence of test environment on specimens . 11
8.1 Change of physical characteristics . 11
8.2 Change of electrical characteristics . 12
8.2.1 With surface moisture . 12
8.2.2 With penetrated moisture . 12
8.3 Corrosion . 12
Annex A (informative) Humidity effects diagram . 13
A.1 General . 13
A.2 Explanatory notes . 13
A.2.1 Water penetration . 13
A.2.2 Examples of effects . 14
Bibliography . 17
Figure A.1 – Physical processes involved in humidity testing . 15
IEC 60068-3-4:2023 © IEC 2023 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 3-4: Supporting documentation and guidance – Damp heat tests
FOREWORD
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IEC 60068-3-4 has been prepared by IEC technical committee 104: Environmental conditions,
classification and methods of test. It is an International Standard.
This second edition cancels and replaces the first edition published in 2001. This edition
constitutes a technical revision.
This edition includes the follo
...
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