ISO INTERNATIONAL STANDARD 2631-1 Second edition 1997-05-01 Corrected and reprinted 1997-07-15 Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General requirements Vibrations et chocs mécaniques - Evaluation de I'exposition des individus a des vibrations globales du corps Partie 1: Exigences générales ISO Reference number ISO 2631-1:1997(E) IHS un Not for Resale ISO 2631-1:1997(E) Contents Page 7 Scope 1 2 Normative references 1 3 Definitions .. 2 4 Symbols and subscripts 2 4.1 Symbols .... 2 4.2 Subscripts . 2 5 Vibration measurement 4 5. Genera ....... 4 5.2 Direction of measurement 4 5.3 Location of measurement 4 5.4 General requirements for signal conditioning 5:5 Duration of measurement . 5 5.6 Reporting of vibration conditions ... 6 Vibration evaluation ... 5 6.1 Basic evaluation method using weighted root-mean-square acceleration 5 6.2 Applicability of the basic evaluation method 6 6.3 Additional evaluation of vibration when the basic evaluation methodisnotsufficient 6 6.4 Frequency weighting 10 6.5 Combining vibrations in more than one direction 12 6.6 Guide to the use of the vibration evaluation methods 13 Health 13 7.1 Application .. 13 7.2 Evaluation of the vibration 13 7.3 Guidance on the effects of vibration on health 14 8 Comfort and perception ... 14 8.1 Application . 14 8.2 Comfort 14 8.3 Perception 16 8.4 Guidance on the effects of vibration on perception and comfort 16 9 Motion sickness . 16 9.1 Application 16 9.2 Evaluation of the vibration 17 @ISO1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56. CH-1211 Geneve 20 . Switzerland Internet [email protected] X.400 C=ch;a=400net; p=iso; o=isocs; S=central Printed in Switzerland Copyright ! nal Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale @ISO ISO2631-1:1997(E) 9.3 Guidance on the effects of vibration on the incidence of motion sickness 17 Annexes A Mathematical definition of the frequency weightings 18 B Guide to the effects of vibration on health 21 c Guide to the effects of vibration on comfort and perception 24 D Guide to the effects of vibration on the incidence of motion sickness 27 E Bibliography 28 ii No reproduction or networking permitted without license from IHS Not for Resale