ISO INTERNATIONAL STANDARD 11303 First edition 2002-11-01 Corrosion of metals and alloys - Guidelines for selection of protection methods against atmospheric corrosion Corrosion des metaux et alliages - Lignes directrices pour le choix des méthodes de protection contre la corrosion atmosphérique Reference number ISO 11303:2002(E) @ ISO 2002 No reproduction or networking permited without license from IHS Not for Resale ISO11303:2002(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2002 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IsO at the address below or IsO's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Printed in Switzerland pyhatoganizatSandadizatio @ ISO 2002 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO11303:2002(E) Foreword member bodies). The work of preparing International Standards is normally carried out through Iso technical committees. Each member body interested in a subject for which a technical committee has been established has liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3 Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. patent rights. IsO shall not be held responsible for identifying any or all such patent rights. alloys. CopyrhtIatioalganizationorSandadizatioerved ili Not for Resale aadizao No reproductic neworkingmitedwithout licenefrmH Not for Resale INTERNATIONALSTANDARD ISO11303:2002(E) Corrosion of metals and alloys Guidelines for selection of protection methods against atmospheric corrosion 1 Scope atmosphericconditions.Inarationalselectionofprotectionmethods,thecorrosivityoftheatmosphericenvironments is one of the important factors. These guidelines use the atmospheric corrosivity classification defined in IsO 9223. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of isO and IEC maintain registers of currently valid International Standards. IsO 8044:1999, Corrosion of metals and alloys Basic terms and definitions IsO 9223:1992, Corrosion of metals and alloys - Corrosivity of atmospheres - Classification categories IsO 12944-2:1998, Paints and varnishes — Corrosion protection of steel structures by protec