ISO INTERNATIONAL STANDARD 6344-3 Third edition 2021-11 CoatedabrasivesDetermination and designation of grain size distribution - Part 3: Microgrit sizes P240 to P5000 Abrasifs appliqués-Détermination et designation de la distribution granulometrique- Partie3:MicrograinsP240aP5000 Reference number IS0 6344-3:2021(E) ISO IS02021 IS0 6344-3:2021(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