1、 SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/J220_201710 SURFACE VEHICLE RECOMMENDED PRACTICE J220 OCT2017 Issued 1971-05 Reaffirmed 2017-10 Superseding J220 FEB2012 Crane Boomstop RATIONALE J220 has been reaffirmed to comply with the SAE Five-Year Review policy. REAFFIRMED BY THE SAE CRANES AND LIFTING DEVICES COMMITTEE _ SAE INTERNATIONAL J220 OCT2017 Page 2 of 2
