ISO INTERNATIONAL STANDARD 21068-1 First edition 2008-08-01 Chemical analysis of silicon-carbide containing raw materials and refractory products - Part 1: General information and sample preparation Analyse chimique des matieres premieres et des produits refractaires contenant du carbure de silicium - Partie 1: Informations generales et preparation des échantillons Reference number ISO 21068-1:2008(E) @ ISO 2008 Standardization with ISC No reproduction or networking permitted without license from IHS Not for Resale ISO 21068-1:2008(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The iso Central Secretariat 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 COPYRIGHT PROTECTED DOCUMENT @ISO2008 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 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 CoDvriaht In @ IS0 2008 - All rights reserved vith ISC No reproduction or networking permitted without license from IHS Not for Resale ISO 21068-1:2008(E) Contents Page Foreword. .iv Introduction 1 Scope. 2 Normative references.... 3 3 Definitions.. 3 4 Sampling and preparation of the test sample 4.1 4.2 Sample pretreatment.... 5 Preliminary analyses... 5 9 Expression of results 7 Test report Bibliography. tandardization'ghts reserved ii with ISC No reproduction or networking pemitted without icense from IHS Not for Resale