ISO INTERNATIONAL STANDARD 12986-1 Second edition 2014-06-15 Carbonaceous materials used in the production of aluminium Prebaked anodes and cathode blocks - Part 1: Determination of bending/shear strength by the three-point method Produits carbonés utilisés pour la production de I'aluminium - Anodes preécuites et blocs cathodiques Partie 1: Détermination de la résistance a la flexion par la méthode troispoints Reference number IS0 12986-1:2014(E) ISO Copyright International Organization for Standardization @ IS0 2014 ed without license from IHS Not for Resale IS0 12986-1:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested 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 copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved or networking permited without license from IHS Not for Resale IS0 12986-1:2014(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Principle 5 Apparatus 6 Test specimen. .3 6.1 Sampling and sample preparation .3 6.2 Size and geometry. 7 Procedure 8 Calculation and expression of results ..4 9 Precision ..5 10 Test report. ..5 Bibliography 6 tneatonadizarghtsrerved ii d by IHS under lic se with ISt ed without license from IHS Not for Resale