ISO INTERNATIONAL STANDARD 4548-3 Second edition 1997-09-15 Methods of test for full-flow lubricating oil filters for internal combustion engines -- Part 3: Resistance to high differential pressure and to elevated temperature Methodes d'essai des filtres a huile de lubrification a passage integral pour moteurs a combustion interne - Partie 3: Resistance aux pressions differentielles elevees et aux hautes temperatures This material is reproduced from Iso documents under International Organization for Standardization (IsO) Copyright License number IHS/lCC/1996.Notforresale.Nopartof theseIsodocumentsmaybe alliowed in the copyright law of the country of use, or with the prior written 7341079),IHSortheISoLicensor'smembers. ISO Reference number ISO 4548-3:1997(E) nal Organization for Standardizatior Provided by IHS under license with ISO No reproduction or networking permitted without license from IHS Not for Resale ISO 4548-3:1997(E) Contents 1 Scope 2 Normative references. 3Definitions 4 Graphical symbols.. 5 Operational characteristics to be tested. 6 Filter to be tested.... 6.1 Filter type.. 6.2 Filter element .. 7 Test rig... 2 7.1 Sump. 7.2 Regulating valves . 2 7.3 Flow meter 2 7.4 Filter mounting.. 8 Test liquids...... 8.1 Test liquids for test of ability to withstand high differential pressure. 8.2 Test liquid for test of ability to withstand elevated temperature.. 9 Accuracy of test condition measurements. 10 Test procedure.. 10.1 Test for ability to withstand high differential pressure 10.2 Test for ability to withstand elevated temperature.. 11 Report of test results. 11.1 High differential pressure test.. 11.2 Elevated temperature test.. Annex A (informative) Bibliography @ISO1997 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 the publisher. International Organization for Standardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Internet [email protected] X.400 C=ch;a=400net;p=iso;o=isocs; s=central Printed in Switzerland No reproduct nitted without license from IHS Not for Resale @iso ISO 4548-3:1997(E) Foreword IsO (the International Organization for Standardization) is a woridwide federation of national standards bodies (IsO committees. Each member body interested 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 Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical 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. International Standard ISO 4548-3 was prepared by Technical Committee ISO/TC 70, Internal combustion engines, Subcommittee SC 7, Tests for lubricating oil filters. This second edition canceis and replaces the first edition (isO 4548-3:1982), which has been technically revised. internalcombustion engines: -Part 1:Differential pressure/flow characteristics Part2:Elementby-passvalvecharacteristics - Part 3: Resistance to high differential pressure and to elevated temperature Part 4: Initial particle retention efficiency, life and cumulative efficiency (gravimetric method) Part 5: Cold start simulation and hydraulic pulse durability test Part6:Staticburst pressuretest Part 7: Vibration fatigue test ..- Part 9: nlet and outlet anti-drain valve tests Part 10: Life and cumulative efficiency in the presence of water in oil Part11:Self-cleaningfilters Part 12: Particle retention ability and contaminant holding capacity using particle counting Annex A of this part of ISO 4548 is for information o