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BS EN IEC 60068-3-4:2023 – TC

BS EN IEC 60068-3-4:2023 – TC

$134.27

Tracked Changes. Environmental testing – Supporting documentation and guidance. Damp heat tests

Published By Publication Date Number of Pages
BSI 2023 48
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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.

PDF Catalog

PDF Pages PDF Title
28 undefined
30 European foreword
Endorsement notice
31 English
CONTENTS
32 FOREWORD
34 INTRODUCTION
35 1 Scope
2 Normative references
3 Terms and definitions
36 4 Procedures for the production and control of humidity
4.1 General
4.2 Injection of water (spraying)
4.3 Injection of water vapour (steam)
37 4.4 Saturation type
4.5 Surface evaporation
4.6 Aqueous solutions
4.7 Dehumidification
4.8 Control of humidity
5 Physical appearance of the effects of humidity
5.1 General
38 5.2 Condensation
5.3 Adsorption
5.4 Absorption
5.5 Diffusion
39 6 Acceleration of tests
6.1 General
6.2 Acceleration factor
7 Comparison of steady-state and cyclic tests
7.1 Test C: Damp heat, steady-state
40 7.2 Test Db: Damp heat, cyclic test
7.3 Sequences of tests and composite tests
8 Influence of test environment on specimens
8.1 Change of physical characteristics
41 8.2 Change of electrical characteristics
8.3 Corrosion
42 Annex A (informative) Humidity effects diagram
A.1 General
A.2 Explanatory notes
A.2.1 Water penetration
43 A.2.2 Examples of effects
44 Figure A.1 ā€“ Physical processes involved in humidity testing (1 of 2)
46 Bibliography

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BS EN IEC 60068-3-4:2023 - TC
$134.27