ISO INTERNATIONAL STANDARD 21018-3 First edition 2008-04-15 Hydraulic fluid power Monitoring the level of particulate contamination of the fluid - Part 3: Use of the filter blockage technique Transmissions hydrauliques - Surveillance du niveau de pollution particulaire des fluides Partie 3: Technique de colmatage de filtre Reference number ISO 21018-3:2008(E) @ ISO 2008 THS unde Not for Resale ISO21018-3:2008(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 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 COPYRIGHTPROTECTEDDOCUMENT @ ISO2008 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 memberbody in the country of the requester. IsO copyright office Casepostale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2008 - All rights reserved ted without license from IHS Not for Resale ISO 21018-3:2008(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Health and safety 4.1 General.... 4.2 Electrical power 4.3 Mechanical fluid power 4.4 Process liquids . 5 Principle of filter blockage technique.. 6 Equipment . 6.1 General.. 6.2 Equipment for on-line and off-line calibration and verification ... Operating procedures ... 7.1 General........ 7.2 Operating from a pressurized line .. 7.3 Procedure for operating from a system reservoir... 7.4 Operating from a bulk container..... 7.5 Operatingfromasamplebottle... 8 Calibration and verification procedure 8.1 General principles. 8.2 Equipment required. 8 8.3 Preliminary procedures 8 8.4 Preparationofdustsample.. 8.5 On-line calibration/verification procedure... 9 8.6 10 9 Calibration and/or verification 11 10 Testreport 12 11 Identificationstatement.. 12 Annex A (informative) Examples of use and applicability of the filter blockage technique...... 13 CopyrightInternatinalOrganizationandardizalionghtsreserved ii from IHS Not for Resale