ISO INTERNATIONAL STANDARD 21826-1 First edition 2022-07 Iron ores Determination of total iron content using the EDTA photometric titration method - Part 1: Microwave digestion method Minerais de fer - Dosage du fer total par la methode titrimétrique photométrique a I'EDTA- Partie 1: Méthode de digestion par micro-ondes Reference number ISO 21826-1:2022(E) ISO @IS02022 IS0 21826-1:2022(E) COPYRIGHTPROTECTED DOCUMENT @IS02022 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 memberbody inthe country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii IS02022-Allrightsreserved