ISO 4548-15:2014

Methods of test for full-flow lubricating oil filters for internal combustion engines - Part 15: Vibration fatigue test for composite filter housings

ISO 4548-15:2014 specifies a method of testing the structural integrity of full-flow lubricating oil filters to withstand engine vibrations. This test is intended for application to spin-on type filters and detachable filters with disposable elements with a maximum flow rate of 100 L/min. Upon agreement between manufacturer and purchaser, this test method can be applied to filters with higher flow rates. This test method is intended for test parts made from composite materials that experience mechanical property changes within the temperature range experienced in service. The test can be applied to filters with other temperature sensitive materials if thought applicable by agreement between the filter manufacturer and the purchaser.

Essai de fatigue aux vibrations pour matériaux composites — Partie 15: Essai de fatigue aux vibrations pour les corps de filtre pressurisés à base de matériaux composites

General Information

• Status: Published
• Publication Date: 10-Jul-2014
• ICS: 17.160 - Vibrations, shock and vibration measurements
• ICS: 27.020 - Internal combustion engines
• Technical Committee: ISO/TC 70/SC 7 - Tests for lubricating oil filters
• Drafting Committee: ISO/TC 70/SC 7 - Tests for lubricating oil filters
• Current Stage: 9092 - International Standard to be revised
• Start Date: 26-May-2025
• Completion Date: 13-Dec-2025

Overview

ISO 4548-15:2014 specifies a standardized vibration fatigue test method to verify the structural integrity of full‑flow lubricating oil filters with composite filter housings under engine vibration and temperature conditions. It covers spin‑on and detachable filters with disposable elements up to 100 L/min rated flow (extendable by agreement) and is intended for parts made from composite or other temperature‑sensitive materials used in service.

Key topics and requirements

• Scope: Applies to full‑flow lubricating oil filters (spin‑on and detachable) with composite pressure vessels; maximum rated flow 100 L/min unless agreed otherwise.
• Preconditioning: Optional soak in test oil and thermal aging to simulate in‑service degradation. Default example condition: 121 °C for 250 hours (modifiable by agreement).
• Test rig components:
  • Electro‑mechanical vibrator with control/monitoring for displacement, velocity and acceleration
  • Oil pressure source and pressure gauge
  • Two accelerometers (input on head/adaptor, output on filter body)
  • Heating device or thermal chamber to maintain test temperature
• Test liquid: Oil with kinematic viscosity < 10 mm2/s ± 5 mm2/s (ISO VG22 at 63 °C or equivalent) or as agreed.
• Vibration profile:
  • Resonance search up to 400 Hz; if no resonance, test at 150 Hz
  • Peak input acceleration typically 60 m/s² (unless otherwise agreed)
  • Maintain rated or agreed test pressure (default 500 kPa) and test temperature (default 121 °C)
  • Typical sequence: test to 10 cycles in one orientation; if successful, repeat with polar axis normal to excitation
• Acceptance and reporting: Document filter ID, test conditions (pressure, temperature, amplitude, frequency), cycles to failure or completion, failure mode/location, and removal torque.

Applications and who should use this standard

• Filter manufacturers: Design validation, material selection, qualification of composite housings, and production verification.
• Engine and vehicle OEMs: Component acceptance testing and supplier specification to ensure reliability under engine vibrations.
• Independent test laboratories: Standardized test execution and impartial reporting for certification or contractual compliance.
• Purchasers and suppliers: Agreeing test conditions (flow limits, pressure, temperature, preconditioning) to manage risk for temperature‑sensitive materials.

Practical benefits include reproducible vibration fatigue data, clearer supplier/purchaser agreements for composite filters, and improved durability assurance for filters used in harsh thermal and vibratory environments.

Related standards

• ISO 4548 series (Parts 1–14) - other test methods for full‑flow lubricating oil filters (pressure/flow, burst tests, particle retention, etc.)
• ISO 1219‑1 - graphical symbols for fluid power systems
• ISO 3448 / SAE J300 - viscosity classification references used for test liquid selection

Keywords: ISO 4548-15:2014, vibration fatigue test, composite filter housings, full‑flow lubricating oil filters, spin‑on filters, test rig, preconditioning, accelerometers, resonance testing.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 4548-15
First edition
2014-07-15
Methods of test for full-flow
lubricating oil filters for internal
combustion engines —
Part 15:
Vibration fatigue test for composite
filter housings
Essai de fatigue aux vibrations pour matériaux composites —
Partie 15: Essai de fatigue aux vibrations pour les corps de filtre
pressurisés à base de matériaux composites
Reference number
©
ISO 2014
© ISO 2014
All rights reserved. Unless otherwise specified, 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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms, 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 Preconditioning . 3
8 Vibration fatigue test . 3
9 Test report . 5
Bibliography . 7
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 (see 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 (see 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.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 70, Internal combustion engines, Subcommittee
SC 7, Tests for lubricating oil filters.
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 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 test
— Part 10: Life and cumulative efficiency in the presence of water in oil
— Part 11: Self-cleaning filters.
— Part 12: Particle retention ability and contaminant holding capacity using particle counting
— Part 13: Static burst test for composite filters
— Part 14: Cold start simulation and hydraulic pulse durability for composite pressure vessel materials
— Part 15: Vibration fatigue test for composite filter housings
iv © ISO 2014 – All rights reserved

INTERNATIONAL STANDARD ISO 4548-15:2014(E)
Methods of test for full-flow lubricating oil filters for
internal combustion engines —
Part 15:
Vibration fatigue test for composite filter housings
1 Scope
This part of ISO 4548 specifies a method of testing the structural integrity of full-flow lubricating oil
filters to withstand engine vibrations. This test is intended for application to spin-on type filters and
detachable filters with disposable elements with a maximum flow rate of 100 L/min. Upon agreement
between manufacturer and purchaser, this test method can be applied to filters with higher flow rates.
This test method is intended for test parts made from composite materials that experience mechanical
property changes within the temperature range experienced in service. The test can be applied to
filters with other temperature sensitive materials if thought applicable by agreement between the filter
manufacturer and the purchaser.
2 Normative references
The following documents, in whole or in part, are normatively 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 4548-1, Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 1:
Pressure drop/flow characteristics
ISO 1219-1, Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1:
Graphical symbols for conventional use and data-processing applications
3 Terms, 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
The graphical symbols used in this part of ISO 4548 are in accordance with ISO 1219-1.
4 Operational characteristics to be tested
Integrally mounted oil filter assemblies, including filter heads, adaptors, mounting
...