ISO INTERNATIONAL STANDARD 1763 Third edition 2020-07-20 Textile floor coverings Determination of number of tufts and/or loops per unit length and per unit area Revetements desol textiles-Determination du nombre de touffes et/ oudebouclespar unitedelongueuretpar unitedesurface Reference number ISO 1763:2020(E) ISO @ISO 2020 IS0 2020,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 copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii @IS0 2020 - All rights reserved Contents Page Foreword ..iv 1 Scope ..1 2 Normativereferences 3 Terms and definitions 4 Principle 5 Apparatus. 6 Conditioning of test specimens ..2 ..3 7 Test specimens. 8 Procedure. ..3 9 Expression of results. 2. 9.1 Number per unit length 9.2 Number per unit area. 4 10 Test report .4 @ IS0 2020 - All rights reserved ili