ISO INTERNATIONAL STANDARD 22254 First edition 2005-08-15 Dentistry Manual toothbrushes Resistance of tufted portion to deflection Art dentaire - Brosses a dents manuelles Résistance a la deflexion de la surface garnie Reference number ISO 22254:2005(E) Copyright International Organization for Standardization @ISO2005 itted without license from IHS Not for Resale ISO22254:2005(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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below ?ISO2005 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 yemainagazainandardizato @ISO2005-All rights reserved nitted without licensefromIHS Not for Resale ISO 22254:2005(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards 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 22254 was prepared by Technical Committee ISO/TC 106, Dentistry, Subcommittee SC 7, Oral care products. ThisfirsteditioncancelsandreplacesISO8627:1987 Copyright Intematinal Organization for Standardizalon'ghts reserved ii ISO 22254:2005(E) Introduction The stiffness of the tufted area of a manual toothbrush has been of great concern for both consumers and manufacturers. This International Standard provides a test method for determining the resistance of the tufted portion to deflection, which could be used to derive a stiffness as described in Annex A. However, this International Standard does not cover stiffness of manual toothbrushes and its classification. For stiffness wide range depending on the method of the measurement and the shape of the tuft holes. Therefore, the amongst different countries, stiffness may be classified differently in each country. CoyrgheatinalganzationStandardizatio @ISO2005-All rights reserved ed by IHS itted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO22254:2005(E) Dentistry Manual toothbrushes Resistance of tufted portion to deflection 1 Scope This International Standard specifies a test method for determining the resistance of the tufted portion of manual toothbrushes to deflection. This International Standard is applicable to toothbrushes having a obtained with this International Standard may not correspond to consumer perceptions of the stiffness of toothbrush filaments. 2 Nor