ISO 4548-5:2013

INTERNATIONAL ISO
STANDARD 4548-5
Second edition
2013-07-15
Methods of test for full-flow
lubricating oil filters for internal
combustion engines —
Part 5:
Test for cold start simulation and
hydraulic pulse durability
Méthodes d’essai des filtres à huile de lubrification à passage intégral
pour moteurs à combustion interne —
Partie 5: Essai pour simulation de démarrage à froid et de résistance
aux impulsions hydrauliques
Reference number
ISO 4548-5:2013(E)
©
ISO 2013

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ISO 4548-5:2013(E)

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ii © ISO 2013 – All rights reserved

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ISO 4548-5:2013(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions and graphical symbols . 1
3.1 Terms and definitions . 1
3.2 Graphical symbols . 1
4 Operational characteristics to be tested . 1
5 Test rig . 2
6 Test liquid . 2
7 Accuracy . 2
8 Cold start simulation test (see Figure 1) . 3
9 Hydraulic pulse durability test (see Figure 1) . 3
10 Test report . 4
Annex A (normative) Values to be used for tests if no agreement is reached with
the manufacturer . 7
Bibliography
. 8
© ISO 2013 – All rights reserved iii

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ISO 4548-5:2013(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 technical 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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 70, Internal combustion engines, Subcommittee
SC 7, Tests for lubricating oil filters.
This second edition cancels and replaces the first edition (ISO 4548-5:1990), of which it constitutes a
minor revision.
ISO 4548 consists of the following parts, under the general title Methods of test for full-flow lubricating
oil filters for internal combustion engines:
— Part 1: Differential pressure/flow characteristics
— 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: Test for cold start simulation and hydraulic pulse durability
— Part 6: Static burst pressure test
— Part 7: Vibration fatigue test
— Part 9: Inlet and outlet anti-drain valve tests
— Part 12: Filtration efficiency using particle counting, and contamination retention capacity
The following parts are under preparation:
— Part 13: Static burst pressure test for composite filter housings
— Part 14: Cold start simulation and hydraulic pulse durability for composite filter housings
— Part 15: Vibration fatigue test for composite filter housings
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ISO 4548-5:2013(E)

Introduction
ISO 4548 (all parts) establishes standard test procedures for measuring the performance of full-flow
lubricating oil filters for internal combustion engines. The series has been prepared in separate parts,
each part relating to a particular performance characteristic.
Together the tests provide the information necessary to assess the characteristics of a filter, but if agreed
between the purchaser and the manufacturer, the tests can be conducted separately.
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INTERNATIONAL STANDARD ISO 4548-5:2013(E)
Methods of test for full-flow lubricating oil filters for
internal combustion engines —
Part 5:
Test for cold start simulation and hydraulic pulse durability
1 Scope
This part of ISO 4548 specifies a method of testing the ability of full-flow lubricating oil filters for
internal combustion engines to withstand an internal pressure surge such as occurs when an engine is
started from cold, and cyclic internal pressure variations experienced during operation.
These tests are intended for application to spin-on type filters and detachable filters with disposable
elements with a maximum flow rate of 100 l/min.
The tests can be applied to other filters, if thought applicable, by agreement between the filter
manufacturer and the purchaser.
NOTE This test is not intended to replace simulated environmental testing (e.g. at very low temperatures). If
such testing is required, it will be the subject of negotiation between the supplier and customer.
2 Normative references
The following documents, in whole or in part, are normative referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 1219, Fluid power systems and components — Graphic symbols
ISO 4548-1, Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 1:
Differential pressure/flow characteristics
3 Terms and definitions and graphical symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4548-1 apply.
3.2 Graphical symbols
For the
...