ISO INTERNATIONAL STANDARD 21079-3 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 3: Flame atomic absorption spectrophotometry (FAAs) and inductively coupled plasma emission spectrometry (ICP-AES) AnalysechimiquedesmateriauxrefractairescontenantdeI'alumine,de lazirconeetdelasiliceMateriauxréfractairescontenantde5%a 45% de ZrO2 (méthode alternativea la méthodeparfluorescence de rayons X) Partie 3: Methodes par spectrométrie d'absorption atomique dans la flamme (FAAS) et spectrometrie d'émission atomique avec plasma induit par haute frequence (ICP-AES) Reference number ISO 21079-3:2008(E) @ ISO 2008 Copyright International Organization for Standardization Not for Resale ISO 21079-3:2008(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 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 @ ISO2008 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 @ ISO 2008 - All rights reserved edwithoutlicense from IHS Not for Resale ISO 21079-3:2008(E) Contents Page Foreword 1 Scope 2 Normative references 3 Instrumental methods using ICP-AES. 3.1 Determination of residual silica in solution by ICP-AES. 3.2 Determination of silicon(IV) oxide, aluminium oxide, iron(Ill) oxide, titanium(IV) oxide, calcium oxide, magnesium oxide, chromium(lll) oxide and hafnium oxide using stock solutions (S1), (S'1) or (S"1) by ICP-AES .... Determination of calcium oxide, magnesium oxide, sodium oxide and potassium oxide using stock solutions (S4) by ICP-AES .. 4 Instrumental methods using Flame Atomic Absorption Spectrometry (FAAS). 4.1 Determination of calcium oxide, magnesium oxide, sodium oxide and potassium oxide using stock solutions (S3) by FAAS... 4.2 Determination of chromium(Ill) oxide by FAAS spectrometry.. 10 5 Calculation and expression of test results 12 6 Test report . 12 Bibliography 13 Copyrght International Organizaionsadardizaoghtsreserved ii d by IHS under Not for Resale