ISO INTERNATIONAL STANDARD 3343 Third edition 2010-12-15 Reinforcement yarns Determination of twist balance index Fils de renfort - Détermination de I'indice d'equilibre en torsion Reference number ISO 3343:2010(E) @ISO 2010 by IHS under lic itted without license from IHS Not for Resale ISO3343:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by Iso member bodies. In COPYRIGHTPROTECTEDDOCUMENT @ISO2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or IsO's memberbody in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 4122749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2010 - All rights reserved I without license from IHS Not for Resale ISO3343:2010(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (lsO memberbodies).The workofpreparingInternationalStandardsisnormallycarriedoutthroughIso established has the right to be represented on that committee. International organizations, governmental and International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. Iso shall not be held responsible for identifying any or all such patent rights. ISO 3343 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcementfibres. revision. The following changes have been made: a) the scope has been broadened to include all reinforcement yarns; b) edition has been withdrawn without replacement); c) a clause concerning conditioning and the test atmosphere has been added. ional organization frStandardiallon'ghts reserved ili Not for Resale