BS IS0 16232:2018 BSl Standards Publication Imperial College London, Version corre Road vehicles Cleanliness of components and systems bsi. BS ISO 16232:2018 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 16232:2018. It supersedes BS IS0 16232-1:2007, BS IS0 16232-2:2007, BS ISO 16232-3:2007, BS ISO 16232-4:2007, BS ISO 16232-5:2007, BS ISO 16232-6:2007, BS ISO 16232-7:2007, BSISO 16232-8:2007, BS IS0 16232-9:2007, BS IS0 16232-10:2007, which are withdrawn. Committee MCE/22, Engines for road vehicles. A list 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. @ The British Standards Institution 2018 Published by BSI Standards Limited 2018 ISBN9780580969591 ICS 13.040.50; 43.180 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2018. Amendments/corrigenda issued since publication Date Text affected BS IS0 16232:2018 INTERNATIONAL ISO STANDARD 16232 First edition 2018-12 Road vehicles Cleanliness of components and systems Vehicules routiers - Proprete des composants et des systemes Reference number IS0 16232:2018(E) [so @ IS0 2018 BS ISO 16232:2018 IS0 16232:2018(E) , Imperial College London, Version correct as of 18/12/2018 Licensed copy: Imperial College , COPYRIGHT PROTECTED DOCUMENT @I IS02018 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 on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address 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: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2018 - All rights reserved BS ISO 16232:2018 IS0 16232:2018(E) Contents Page Foreword ..vi Introduction. ..vii 1 Scope. , Version correct as of 18/12/2018 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms. ..11 5 Cleanliness inspection principles ..13 5.1 General. .13 5.2 Selecting the inspection method .14 5.3 Start parameters. .15 5.4 Cleaning mechanism parameters ..16 5.5 Staff skills. ..16 6 Qualification tests and blank level. ..16 6.1 General. ..16 6.2 Qualification tests. ..17 6.2.1 Principle ..17 , Imperial College London, 6.2.2 Materials and equipment. ..18 6.2.3 Procedure. .18 6.3 Blank level. .21 6.3.1 Principle 21 6.3.2 Deriving blank levels 22 6.3.3 Materials and equipment. 23 6.3.4 Procedure. 23 6.4 Exceptional cases 24 7 Extraction methods. .24 7.1 Principles.. 24 7.2 General requirements of extraction equipment. 25 7.3 Preparatory steps and post-treatment of test components 25 7.3.1 General. 25 7.3.2 Unpacking 25 7.3.3 Clarifying which surfaces require inspection 25 7.3.4 Preparatory steps. 26 7.3.5 Disassembly 26 7.3.6 Demagnetization 27 7.3.7 Post-treatment. 27 7.4 Liquid extraction .27 7.4.1 General. 27 7.4.2 Test liquid. 27 7.4.3 Pressure-rinsing 28 7.4.4 Ultrasonic vibration .30 7.4.5 Internal rinsing. ..34 7.4.6 Agitation. .36 7.4.7 Dissolving. .38 7.5 Air extraction. ..40 7.5.1 General. .40 7.5.2 Air jet extraction ..40 7.5.3 Air through-flow extraction ..42 8 Analysis filtration .44 8.1 Principles. ..44 8.2 Selecting the analysis filtration method. .44 8.2.1 General. .44 @ IS0 2018 - All rights reserved ii BS ISO 16232:2018 IS0 16232:2018(E) Contents Page Foreword ..vi Introduction. ..vii 1 Scope. , Version correct as of 18/12/2018 2 Normative references 3 Terms and definitions 4 Symbo