ISO INTERNATIONAL STANDARD 4695 Fifth edition 2021-10 Iron ores for blast furnace feedstocksDeterminationofthe reducibility by the rate of reduction index Mineraisdeferpourchargesdehautsfourneaux-Determinationde laréductibilitéapartirdelavitessederéduction Referencenumber IS0 4695:2021(E) ISO @ISO2021 IS0 4695:2021(E) COPYRIGHTPROTECTEDDOCUMENT @IS02021 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 anyform or by anymeans, electronic or mechanical, including photocopying, orposting on theinternetoran intranet,withoutpriorwrittenpermission.Permissioncanberequestedfrom eitherIsoattheaddressbelow or ISO's member body in the country of the requester. ISO copyright office CP401 : Ch.de Blandonnet 8 CH-1214 Vernier,Geneva Phone: +4122 749 0111 Email: [email protected] Website:www.iso.org Published in Switzerland ii @IS0 2021-All rights reserved