ISO INTERNATIONAL STANDARD 13428 First edition 2005-02-15 Geosynthetics Determination of the protection efficiency of a geosynthetic against impact damage Géosynthetiques - Détermination de I'efficacité de protection d'un géosynthétique contre I'effet d'un impact Reference number ISO 13428:2005(E) Copyright International Organization for Standardization @ISO2005 Not for Resale ISO13428:2005(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 Copyightinteratinal organization for Standardization @ ISO 2005 - All rights reserved nitted without licensefrom IHS Not for Resale ISO 13428:2005(E) Contents Page Foreword .iv 1 Scope 2 Normative references 3 Terms and definitions.. 4 Principle. 5 Test specimens . 6 Apparatus (see Figure 1). 7 Test procedure. 5 8 Calculation 6 9 Test report... Annex A (informative) Performance testing.. Bibliography .... Copyrght International Organizaionosadardizaoghtsreserved ili Not for Resale ISO 13428:2005(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 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 13428 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 189, Geosynthetics, in collaboration with Technical Committee ISO/TC 221, Geosynthetics, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement) ional OrganizationforStandardizatior @ISo2005-Allrightsreserved INTERNATIONALSTANDARD ISO 13428:2005(E) Geosynthetics Determination of the protection efficiency of a geosynthetic against impact damage 1 Scope This International Standard describes an index test for the determination of the protection efficiency of a geosynthetic on a hard surface, exposed to the impact load of a hemispherical object. rigid support. It can also be used as a performance test, by using the real rigid surface to protect and the real sequence of geosynthetics. The test is applicable to all geosynthetics with apertures smaller than 15 mm (maximum size). Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 554, Standard atmospheres for conditioning and/or testing Specifications IsO 9862, Geosynthetics Sampling and preparation of test specimens Iso 9863-1, Ge