ISO INTERNATIONAL STANDARD 16992 Third edition 2018-09 Passenger car tyres Spare unit substitutive equipment (SUSE) Pneumatiques pour voitures particulieres - Equipements de substitution de roue de secours (SUSE) Reference number IS0 16992:2018(E) so International Org lanization for Standardization Shenzhen Insttute of Standards and Technology 9972181 @IS02018 IS0 16992:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ensee-Shenzhen Institute of Standards andeclS0log?&s- All rights reserved rious National Standards Bodies IS0 16992:2018(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normativereferences 3 Terms and definitions ..2 4 Symbols. ..4 5 Conformance ..4 6 SUSE systems ..4 6.1 General ..4 6.2 Function and performance .4 7 Endurance test. ..8 7.1 Endurance test for a run-flat tyre, or a self-supporting tyre, or a tyre equipped withtheinternalsupportingring 7.2 Endurance test for an extended mobility tyre ..10 8 Markings .10 Annex A (informative) Properties of a SUsE providing restored mobility ..11 Annex B (informative) Properties of a SUSE providing preserved mobility ..12 Bibliography .13 iii andards and Technology 9972181