ISO INTERNATIONAL STANDARD 3613 Fourth edition 2021-05 Metallic and other inorganic coatings - Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc- aluminium alloys - Test methods Revetements métalliques et autres revetements inorganiques Couches de conversion au chromate sur zinc, cadmium et alliages d'aluminium-zinc et de zinc-aluminium - Méthodes d'essai Reference number IS0 3613:2021(E) ISO @ISO2021 IS0 3613:2021(E) COPYRIGHT PROTECTED DOCUMENT 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 any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's member body in the country of the requester. ISO copyright office CP 401 : 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