ISO INTERNATIONAL STANDARD 18553 First edition 2002-03-01 Method for the assessment of the degree of pigment or carbon black dispersion in polyolefin pipes, fittings and compounds Methode d'estimation de la dispersion du pigment et du noir de carbone dans les tubes, raccords et compositions a base de polyolefines Reference number ISO 18553:2002(E) ISO @ ISO 2002 THS under Not for Resale ISO18553:2002(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 downloading 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 ?ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic 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 copyright@iso.ch Web www.iso.ch Printed in Switzerland ISO 2002 - All rights reserved itted without license from IHS Not for Resale ISO 18553:2002(E) Contents Page Foreword. iv Introduction Scope 7 2 Principle. : Apparatus 4 Procedure 5 Expression of results. 6 Test report.... Annex A (normative) Grading table for particles and agglomerates.. Annex B (normative) Photomicrographs for evaluation of the appearance of the dispersion. Annex C (informative) Examples of grading of particles and agglomerates Annex D (informative) Basic specification ili HS under from IHS Not for Resal