ISO INTERNATIONAL STANDARD 4525 Second edition 2003-02-15 Metallic coatings Electroplated coatings of nickel plus chromium on plastics materials Revetements meétalliques - Dépots eélectrolytiques de nickel plus chrome sur matieres plastiques Reference number ISO 4525:2003(E) @ ISO 2003 No reproduction or networking permited without license from IHS Not for Resale ISO4525:2003(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, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. 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 @ISO2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Printed in Switzerland pyhatoganizatSandadizatio @ ISO 2003 - All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 4525:2003(E) Contents Page 1 Scope 2 Normative references 3 Terms and definitions 4 Information to be supplied to the electroplater 2 Service condition number 2 6 Designation . 3 Requirements 5 8 Sampling 9 Test methods Annexes A Thermal cycle test. 8 B Examples of service conditions for which the various service condition numbers are appropriate . 9 Ductility test....... 10 D Determination of sulfur content of electrodeposited nickel .. 11 E Determination of cracks and pores in chromium coatings . 12 F Methods of test for the determination of thickness 13 G Combined thermal cycle and corrosion testing.. 14 Bibliography. 15 ili No reproduction or networking permited without license from IHS Not for Resale ISO 4525:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject oi patent rights. IsO shall not be held responsible for identifying any or all such patent rights. coatings, Subcommittee SC 3, Electrodeposited coatings and related finishes. This second edition cancels and replaces the first edition (isO 4525:1985), which has been technically revised CopyrightInternationalOrganizationforStandardization @ ISO 2003 - All rights reserved nse from IHS Not for Resale ISO 4525:2003(E) Introduction The traditional method of preparing plastics for electroplating includes electrodeposition of a ductile acid copper and its substitution with ductile nickel is a new trend aimed at facilitating the reclamation of electroplated plastics at separation and complete removal of copper because of its detrimental effects on the properties of stainless steel. Although the traditional method is still the one most widely applied, the automotive and plumbing industries are now specifying ductile nickel as replacement for copper undercoats in Europe, because of the reclamation benefits decorative, electroplated nickel plus chromium coa