IEC 60068-2-85:2019

IEC 60068-2-85 ®
Edition 1.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-85: Tests – Test Fj: Vibration – Long time history replication

Essais d'environnement –
Partie 2-85: Essais – Essai Fj: Vibrations – Reproduction dans le temps par
accélérogrammes
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IEC 60068-2-85 ®
Edition 1.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Environmental testing –
Part 2-85: Tests – Test Fj: Vibration – Long time history replication

Essais d'environnement –
Partie 2-85: Essais – Essai Fj: Vibrations – Reproduction dans le temps par

accélérogrammes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 19.040 ISBN 978-2-8322-7079-0

– 2 – IEC 60068-2-85:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements for test apparatus . 9
4.1 General . 9
4.2 Basic motion . 9
4.3 Cross-axis motion . 9
4.4 Mounting . 10
4.5 Measuring systems . 10
5 Severities . 10
6 Preconditioning . 10
7 Initial measurements and functional performance test. 10
8 Testing . 10
8.1 General . 10
8.2 Initial vibration response investigation . 11
8.3 Low-level excitation for equalization prior to testing . 12
8.4 Testing with specimen functioning . 12
8.5 Final vibration response investigation . 12
9 Recovery . 12
10 Final measurements and functional performance . 13
11 Information to be given in the relevant specification . 13
12 Information to be given in the test report. 13
Annex A (informative) Guidance . 15
A.1 General . 15
A.2 Requirements for testing . 15
A.2.1 Single-point control . 15
A.2.2 Controlled input testing . 16
A.2.3 Controlled response testing . 16
A.2.4 Verification parameters . 16
A.3 Testing procedures . 18
A.4 Equipment normally used with vibration isolators . 18
A.4.1 Transmissibility factors for isolators . 18
A.4.2 Temperature effect . 18
A.5 Test severities . 18
A.6 Equipment performance . 18
A.7 Initial and final measurements . 19
A.8 Frequency range . 19
Bibliography . 21

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENVIRONMENTAL TESTING –
Part 2-85: Tests – Test Fj: Vibration –
Long time history replication
FOREWORD
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International Standard IEC 60068-2-85 has been prepared by IEC technical committee 104:
Environmental conditions, classification and methods of test.
The text of this International Standard is based on the following documents:
FDIS Report on voting
104/833/FDIS 104/840/RVD
Full information on the voting for the
...