ISO INTERNATIONAL STANDARD 4918 Second edition 2016-03-15 Resilient, textile and laminate floor coverings Castor chair test Revetements de sol textiles, resilients ou stratifiés - Essai a I'appareil a roulettes Reference number ISO 4918:2016(E) ISO International Organization for Standardization =ZHEJIANG INST OF STANDARDIZATION C1 5956617 @IS02016 vided by IHS under lic Not for Resale, 2016/6/2 08:41:13 itted without license from IHS IS0 4918:2016(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2016, Published in Switzerland All rights reserved. Unless otherwise specified, 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 copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinair PrganizationforStandardization ensee-ZHEJIANG INST OF STANDARDIzARoISQ16- All rights reserved etworking permitted without license from IHS IS0 4918:2016(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus. 6 Materials. ..5 7 Sampling. ..5 7.1 Textile floor coverings ..5 7.2 Resilient floor covering .6 7.3 Laminate floor coverings .6 8 Conditioning .7 8.1 Textile floor coverings .7 8.2 Resilient and laminate floor coverings .7 9 Procedure .7 9.1 Textile floor coverings .7 9.1.1 General. .7 9.1.2 Mounting of the specimens ..7 9.1.3 Verifications of the castors. .7 9.1.4 Preparing of the apparatus. 9.1.5 Test procedures for textile floor coverings .8 9.2 Resilient and laminate floor coverings... .9 9.2.1 General .9 9.2.2 Mounting of the specimen .9 9.2.3 Verification ofthecastors .10 9.2.4 Preparing the apparatus .10 9.2.5 Test procedure for resilient and laminate floor coverings ..10 10 Assessment .10 10.1 Textile floor coverings .10 10.1.1 General. ..10 10.1.2 Test A Structural integrity assessment ..11 10.1.3 Test A Appearance retention assessment .11 10.1.4 Test B Colour change assessment ..11 10.1.5 Test C Structural integrity assessment. .11 10.2 Resilient floor coverings. ..11 10.2.1 Resilient floor covering with click joints for floating installation ..11 10.3 Laminate floor coverings. .11 11 Calculations and expression of results .12 11.1 Textile floor coverings .12 11.1.1 Optional results for textile floor coverings .12 11.2 Resilient floor coverings .12 11.3 Laminate floor coverings. ..12 12 Test report. .12 iii See=ZHEJIANG INST OF STANDARDIZATION C15956617 ed without license from IHS Not for Resale, 2016/6/2 08:41:13