ISO INTERNATIONAL STANDARD 20292 First edition 2009-05-15 Materials for the production of primary aluminium Dense refractory bricks Determination of cryolite resistance Materiaux pour la production de I'aluminium de premiere fusion - Briques refractaires denses - Determination de la resistance de la cryolite Reference number ISO20292:2009(E) ISO @ ISO 2009 ISO 20292:2009(E) PDFdisclaimer 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 COPYRIGHTPROTECTEDDOCUMENT ISO2009 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 copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2009 - All rights reserved ISO20292:2009(E) Contents Page Foreword .iv 1 Scope. 2 Principle. 3 Sampling... 4 Reagents. 5 Apparatus. 6 Procedure 7 Precision statement 8 Testreport Bibliography.. izalion'ghts reserved ili