ISO INTERNATIONAL STANDARD 4548-1 First edition 1997-09-15 Methods of test for full-flow lubricating oil filters for internal combustion engines Part 1: Differential pressure/flow characteristics Methodes d'essai des filtres a huile de lubrification a passage intégral pour moteursa combustion interne- Partie 1: Caractéristique debit/pression differentielle This material is reproduced from Iso documents under International Organization for Standardization (IsO) Copyright License number IHS/lCC/1996.Notforresale.NopartoftheseISOdocumentsmaybe reproduced in any form, electronic retrieval system or otherwise, except as allowed inthe copyright law ofthe country of use, or withthe prior written consent of ISO (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 734.10 79), IHS or the ISO Licensor's members. ISO Reference number ISO 4548-1:1997(E) Proyriaht lnte emational Organization for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 4548-1:1997(E) Contents 1 Scope. 2 Normative references 3 Definitions .. 4 Graphical Symbols .. 5 Operational characteristics to be tested.. 6 Filter to be tested.. 6.1 Filter type.. 6.2 Filter element 2 7 Test rig. 7.1Sump 7.2 Regulating valves . 7.3 Flow meter. 7.4 Filter mounting 8 Test liquids.. 9 Accuracy of test condition measurements. 10 Test procedure. 10.1 Test of the complete filter. 10.2 Test of the filter element 11 Report of test results. Annex A (informative) Bibliography. @ISO1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any fom or by any means, electronic or mechanical, including photocopying and microflm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 . CH-1211 Geneve 20 · Switzerland [email protected] X.400 C=ch; a=400net;p=iso;o=isocs; s=central Printed in Switzerland pyright Intemational Organization for Standardizatior from IHS @ iso ISO 4548-1:1997(E) Foreword Iso (the International Organization for Standardization) is a worldwide 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 4548-1 was prepared by Technical Committee ISO/TC 70, Internal combustion engines, Subcommittee SC 7, Tests for lubricating oil filters. This second edition cancels and replaces the first edition (isO 4548-1:1982), which has been technically revised. Iso 4548 consists of the following parts, under the general title Methods of test for full-flow lubricating oil filters for internal combustion engines: -Part1:Differentialpressure/flowcharacteristics -Part 2: Element by-pass valve characteristics - 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 Part 6: Static burst pressure test - Part 7: Vibration fatigue test Part 9: Inlet and outlet anti-drain valve tests Part 1o: 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 only. ii