ISO INTERNATIONAL STANDARD 501 Fourthedition 2012-09-01 HardcoalDeterminationofthe crucible swelling number Houille-Determination de I'indice de gonflement au creuset Reference number IS0501:2012(E) LSO IS02012 ted without license from IHS Not for Resale IS0501:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 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 addressbeloworIso'smemberbodyinthecountryoftherequester. ISO copyright office Case postale 56.CH-1211 Geneva 20 Tel.+4122 749 0111 Fax +4122 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2012- All rights reserved No reproduction or networking permited without license from IHS Not for Resale IS0 501:2012(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Principle 4 Preparation of the test sample 5 Apparatus. ..1 6 Preparation ofapparatus ..3 7 Procedure. 8 Expression of results .7 9 Precision of the method .7 9.1 Repeatability .7 9.2 Reproducibility .7 10 Test report. iii ed without license from IHS Not for Resale