ISO 22882:2016

INTERNATIONAL ISO
STANDARD 22882
Second edition
2016-12-01
Castors and wheels — Requirements
for castors for hospital beds
Roues et roulettes — Exigences pour roulettes pour lits d’hôpitaux
Reference number
©
ISO 2016
© ISO 2016, Published in Switzerland
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ii © ISO 2016 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions and classification . 1
4.1 Characteristics . 1
4.2 Dimensions . 1
4.3 Fixing system . 2
4.4 Load capacity . 3
5 Requirements for testing . 3
5.1 General . 3
5.2 Standard conditions . 3
5.2.1 Environmental conditions . 3
5.2.2 Test sequence . . . 3
5.3 Initial wheel play . 4
5.3.1 Test objectives, apparatus and procedures . 4
5.3.2 Acceptance criteria . 4
5.4 Initial swivel play . 4
5.4.1 Test objectives, apparatus and procedures . 4
5.4.2 Acceptance criteria . 4
5.5 Electrical resistance test . 4
5.5.1 Test objectives, apparatus and procedures . 4
5.5.2 Test values . 4
5.5.3 Tolerances . 5
5.5.4 Acceptance criteria . 5
5.6 Fatigue test for locking/braking device . 5
5.6.1 Test objectives, apparatus and procedures . 5
5.6.2 Test values . 5
5.6.3 Tolerances . 5
5.6.4 Acceptance criteria . 6
5.7 Efficiency check of wheel braking and/or locking device . 6
5.7.1 Test objectives, apparatus and procedures . 6
5.7.2 Test values . 6
5.7.3 Tolerances . 6
5.7.4 Acceptance criteria . 6
5.8 Efficiency check of swivel braking and/or locking device. 6
5.8.1 Test objectives, apparatus and procedures . 6
5.8.2 Test values . 6
5.8.3 Tolerances . 7
5.8.4 Acceptance criteria . 7
5.9 Static test . 7
5.9.1 Test objectives, apparatus and procedures . 7
5.9.2 Test values . 7
5.9.3 Tolerances . 7
5.9.4 Acceptance criteria . 8
5.10 Dynamic test. 8
5.10.1 Test objectives, apparatus and procedures . 8
5.10.2 Test values . 8
5.10.3 Tolerances . 8
5.10.4 Acceptance criteria . 9
5.11 Efficiency check of wheel braking and/or locking device . 9
5.12 Efficiency check of swivel braking and/or locking device. 9
5.13 Final wheel play . 9
5.13.1 Test objectives, apparatus and procedures . 9
5.13.2 Acceptance criteria . 9
5.14 Final swivel play.10
5.14.1 Test objectives, apparatus and procedures .10
5.14.2 Acceptance criteria .10
6 Conformity .10
7 Marking .10
7.1 Product marking .10
7.2 Marking of electrically conductive or antistatic castors/wheels .10
Bibliography .11
iv © ISO 2016 – All rights reserved

Foreword
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