ISO INTERNATIONAL STANDARD 13318-2 Second edition 2007-09-15 Determination of particle size distribution by centrifugal liquid sedimentation methods - Part 2: Photocentrifuge method Détermination de la distribution granulometrique par les methodes de sédimentation centrifuge dans un liquide - Partie 2: Méthode photocentrifuge Reference number ISO 13318-2:2007(E) @ ISO 2007 IHSunder nse from IHS Not for Resale ISO 13318-2:2007(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. COPYRIGHTPROTECTEDDOCUMENT @ISO2007 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-1211Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISo 2007 - All rights reserved I without license from IHS Not for Resale ISO 13318-2:2007(E) Contents Page Foreword Introduction 1 Scope 2 Normative references 3 Terms, definitions and symbols. 4 Principle... 5 Apparatus 6 Sampling.. 7 Preparation ... 6 7.1 Sample preparation 7.2 Temperature. 7.3 Dispersion 8 Procedure 8.1 Line-start methods.. 8.2 Homogeneous technique.... 9 Tests in duplicate and validation .. 9.1 Tests in duplicate... 8 9.2 Validation...... 8 10 Calculation of results 8 10.1 8 10.2 Calculation of particle size 10.3 Calculation of cumulative mass percentage... 8 11 Reporting of results. 9 Annex A (informative) Worked example... Annex B (informative) Extinction curve, example for titanium dioxide. 15 Annex C (informative) Effect of radial dilution .. 16 Bibliography.... CopyrightIntenatinalOrganizationandardizalioghtsreserved ii from IHS Not for Resale ISO 13318-2:2007(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeen 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. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 13318-2 was prepared by Technical Commitee ISO/TC 24, Sieves, sieving and other sizing methods, Subcommittee SC 4, Sizing by methods other than sieving. This second edition cancels and replaces IsO 13318-2:2001, of which it constitutes a minor revision, due to the extension of Clause 4 and 5.2, and the addition of Figure 3 and the Bibliography. IsO 13318 consists of the following parts, under the general title Determination of particle size distribution b