ISO-15711-2003.pdf
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1、 Reference number ISO 15711:2003(E) ISO 2003 INTERNATIONAL STANDARD ISO 15711 First edition 2003-05-15 Paints and varnishes Determination of resistance to cathodic disbonding of coatings exposed to sea water Peintures et vernis Dtermination de la rsistance au dcollement cathodique des revtements exp
2、oss leau de mer Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:18:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15711:2003(E) PDF disclaime
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5、le; 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. ISO 2003 All rights
6、 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 ISOs member body in the country of the r
7、equester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2003 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with I
8、SO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:18:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15711:2003(E) ISO 2003 All rights reserved iii Contents Page Forewordiv Introduction v 1 Scope1 2 Normative references .1 3 Terms and de
9、finitions.2 4 Principle.2 5 Required supplementary information.2 6 Test solutions2 7 Apparatus.3 8 Sampling5 9 Test panels 5 10 Procedure.9 11 Expression of results11 12 Precision12 13 Test report12 Annex A (normative) Required supplementary information13 Annex B (normative) Sacrificial anodes Compo
10、sition of zinc alloy.14 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:18:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15711:2003(E) iv IS
11、O 2003 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested
12、 in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Comm
13、ission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technic
14、al 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO sha
15、ll not be held responsible for identifying any or all such patent rights. ISO 15711 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. Copyright International Organization for Standardization Provided by IHS under li
16、cense with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:18:24 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15711:2003(E) ISO 2003 All rights reserved v Introduction This International Standard describes two methods for determining
17、the ability of paint or other organic coatings applied to metallic substrates to withstand cathodic disbonding. These methods may also afford a basis for the comparison of particular coatings. The conditions of test are more severe than those likely to be encountered normally and so coating failure
18、may be accelerated. It is recommended that the test be carried out for a period of at least 26 weeks and hence these methods are not suitable as a means of achieving quality control. The methods are suitable for coatings used for the protection of ships and structures exposed to sea water. Method A
19、is based on the procedure developed and evaluated by COIPM (Comit International Permanent pour la Protection des Matriaux en Milieu Marin). The test result may be influenced not only by the properties of the coating system under test, but also by the nature and preparation of the substrate, the meth
20、od of application of the coating system and other factors. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:18:24 MDTNo reproduction or networking permitted without license fro
21、m IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 03:18:24 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 15711:20
22、03(E) ISO 2003 All rights reserved 1 Paints and varnishes Determination of resistance to cathodic disbonding of coatings exposed to sea water 1 Scope This International Standard describes two methods for determining the ability of paint, or other organic coatings, applied to metallic substrates to w
23、ithstand cathodic disbonding when the surface coating may contain or develop discontinuities. The methods are applicable to coatings that are exposed to sea water, such as those applied to ships or marine structures. They are not suitable for the assessment of the ability of coatings to withstand ca
24、thodic disbonding on land-based structures. Method A involves the use of a cathodic protection circuit, whereby the electrode potential of the test substrates is controlled potentiostatically. Method B involves the use of sacrificial anodes attached to the test substrates. This reflects the practica
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