ISO INTERNATIONAL STANDARD 6467 Second edition 2018-01 Ferrovanadium Determination of vanadium content Potentiometric method Ferrovanadium -Dosage du vanadium -Méthode potentiometrique Reference number IS0 6467:2018(E) ISO @IS02018 IS0 6467:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 40i: Ch. de Blandonnet 8 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org Published in Switzerland ii @ IS0 2018 - All rights reserved IS0 6467:2018(E) Contents Page Foreword .iv 1 Scope 1 2 Normative references ..1 3 Terms and definitions 4 Principle 5 Reagents. ..1 6 Apparatus ..2 7 Sample. ..3 8 Procedure ..3 9 Expression of results ..3 10 Precision 10.1 Expression of precision .4 10.2 Calculation of final result .4 11 Test report .4 Annex A (informative) Original data from the verification test ..6 Annex B (informative) Graphical representation of the precision data .7 Annex C (informative) Flow sheet for the procedure for the acceptance of analytical value for test samples. 8 Bibliography 9 @ IS0 2018 - All rights reserved ii