BS ISO BRITISH STANDARD 15726:2009 Metallic and other inorganic coatings - Electrodeposited zinc alloys with nickel. cobalt or iron ICS 25.220.40 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO15726:2009 National foreword This British Standard is theUK implementation of ISO15726:2009. The UK participation in its preparation was entrusted to Technical Committee STI/33, Electrodeposited and related coatings. Alist of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard Amendments/corrigendaissuedsincepublication was published under the authority ofthe Standards Policy and Strategy Date Comments Committee on 28 February 2009 BSI 2009 ISBN9780 580 60525 3 BS ISO15726:2009 ISO INTERNATIONAL STANDARD 15726 First edition 2009-02-01 Metallic and other inorganic coatings Electrodeposited zinc alloys with nickel, cobalt or iron Revetements metalliquesetautresrevetements inorganiques-Depots électrolytiguesd'alliagesdezincaunickel,cobaltoufer Reference number ISO 15726:2009(E) O @ISO2009 BS ISO 15726:2009 ISO15726:2009(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 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 the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT ISO 2009 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 so at the address below or ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 4122 749 0111 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ Is0 2009All rights reserved BSISO15726:2009 ISO15726:2009(E) Contents Page Foreword. iv Introduction 1 Scope 2 Normative references.... 3 Terms and definitions.. 4 Informationtobesupplied bythepurchasertothe electroplater 4.1 Essential information... 4.2 Additional information... 5 Designation 5.1 General..... 5.2 Designationspecification. 5.3 Basis metal. 5.4 Stress-relief heat treatment priorto electroplating 5.5 Type and thickness ofzincalloy coating......... 5.6 Chromateconversioncoatingsandothersupplementarytreatments 5.7 Hydrogen-embrittlement-reliefheattreatmentafterelectroplating. 5.8 Examples of coating designations.... 6 Requirements 6.1 Appearance 6.2 Thickness 6.3 Adhesion.. 6.4 Porosity...... 6.5 Compositionof coating... 6.6 Corrosion performance in neutral salt spray.... 6.7 Stress-reliefheattreatments.. 6.8 Hydrogen-embrittlement-reliefheat treatments.... 7 Sampling.... AnnexA(normative)Thickness,adhesionandporositytests. AnnexB(normative)Corrosionperformance ofzinc alloycoatingswith chromate conversionand @ ISO 2009 - All rights reserved ili BSISO15726:2009 ISO15726:2009(E) 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 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 2 International Standard requires approval by at least 75 % of the member bodies casting a vote. rights. IsO shall not be held responsible for i