ISO INTERNATIONAL STANDARD 6506-3 Third edition 2014-10-01 Metallic materials Brinell hardness test - Part 3: Calibration of reference blocks Matériaux métalliques - Essai de dureté Brinell - Partie 3: Etalonnage des blocs de reference Reference number IS0 6506-3:2014(E) ISO Copyright intematioal Organizatin for Standardizatin @IS02014 Not for Resale IS0 6506-3:2014(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 6506-3:2014(E) Contents Page Foreword ..iv 1 Scope .1 2 Normativereferences 3 Manufacture of reference blocks. 4 Calibration machine 5 Calibration procedure 6 Number ofindentations. ..3 7 Non-uniformity of reference block 8 Marking ..4 9 Validity ..5 Annex A (informative) Uncertainty of the mean hardness value of reference blocks .6 Bibliography .10 Copyriotnteatinal organiason te Sanarizal rights reserved iii d by IHS under ed without license from IHS Not for Resale