ISO INTERNATIONAL STANDARD 15222 Second edition 2021-11 Truck and bus tyres Method for measuring relative wet grip performance Loaded new tyres Pneumatiques pour camions et autobus Méthode de mesure de I'adhérence relative sur revetement mouillé - Pneumatiques neufs en charge Reference number IS0 15222:2021(E) ISO @IS02021 IS0 15222:2021(E) COPYRIGHT PROTECTED DOCUMENT @ IS02021 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, withoutpriorwrittenpermission.Permission can berequestedfrom eitherIso at theaddress below orIso'smemberbodyinthecountryoftherequester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2021 - All rights reserved