ISO INTERNATIONAL STANDARD 23160 First edition 2011-06-01 Watch cases and accessories Tests of the resistance to wear, scratching and impacts Boites de montres et leurs accessoires - Essais de résistance a I'usure, aux rayures et aux impacts Reference number ISO 23160:2011(E) @ ISO 2011 py IHS under lic ted without license from IHS Not for Resale ISO 23160:2011(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, isO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2011 - All rights reserved py IHS unde itted without license from IHS Not for Resale ISO 23160:2011(E) Contents Page Foreword Introduction 1 Scope 2 Normative references. 3 Terms and definitions. 4 Wear resistance... 4.1 Wear test using moving ceramic chips.. 4.2 Wear test using continuous friction against a textile belt 4.3 Wear test by reciprocating movement against an abrasive surface 5 Scratch resistance.... 10 5.1 Objective. 10 5.2 Descriptionoftest 5.3 Abrasive load .. 10 5.4 Operating procedure 10 5.5 Calibration... 5.6 Evaluation of results . 6 Impact resistance 6.1 Objective..... 11 6.2 Description of test 6.3 Abrasive material. 6.4 Operating procedure. 12 6.5 6.6 Evaluationofresults. 13 Annex A (normative) Visual inspection of watch cases and wristlets or test samples after testing forresistanceto wear, scratching andimpacts......... .14 Annex B (informative) Examples of machines and abrasive elements used for the tests described 15 Bibliography. 16 Copyright International Organization for Standardizalon ghts reserved ii put license from IHS Not for Resale