ISO INTERNATIONAL STANDARD 21079-1 First edition 2008-04-15 Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO2 (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents and dissolution Analyse chimique des materiaux réfractaires contenant de I'alumine, de la zircone et de la silice - Materiaux réfractaires contenant de 5 % a 45 % de ZrO2 (méthode alternative a la méthode par fluorescence de rayonsX)- Partie 1: Appareillage, réactifs et dissolution Reference number ISO 21079-1:2008(E) @ ISO 2008 THS unde Not for Resale ISO 21079-1:2008(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 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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. 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 sO 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 @ IS0 2008 - All rights reserved py IHS unde I without license from IHS Not for Resale ISO 21079-1:2008(E) Contents Page Foreword. 1 Scope 2 Normative reference: 3 Terms and definitions.. 4 Apparatus 5 Reagents 5.1 General. 5.2 Standard solutions specific to Iso 21079 6 Sampling. 7 General procedures. 8 Determination of loss on ignition. 9 Decomposition of the sample and preparation of solutions used in the analysis .. 9.1 General decomposition techniques.... 9.2 Dissolution methods by fusion .. 9.3 Dissolution methods by hydrofluoric acid attack .. 10 Expression of test results. 10 11 Examination and adoption of test results .. .10 12 Test report.. 11 Annex A (informative) References for stock solutions and blank solutions in this part of ISO 21079...... 12 Bibliography 13 CopyrightInternatinal Oorganizain for standardizalion ghts reserved ii se from IHS Not for Resale