Methods of test for full-flow lubricating oil filters for internal combustion engines Filtration efficiency using particle counting and contaminant retention capacity

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

07-11-2017

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Test equipment and materials
6 Accuracy of measuring instruments and test
conditions
7 Test rig validation
8 Preliminary preparation
9 Test procedure
10 Calculations and report of test results
Annex A (normative) - Specification of test fluid for
oil filter test
Annex B (informative) - Typical filter test report
Annex C (normative) - Filter efficiency calculations
Annex D (informative) - Round robin exercise
Bibliography

Describes a multi-pass filtration test with continuous contaminant injection and using the online particle counting method for evaluating the performance of full-flow lubricating oil filters for internal combustion engines.

This document specifies a multi-pass filtration test with continuous contaminant injection and using the online particle counting method for evaluating the performance of full-flow lubricating oil filters for internal combustion engines. The scope of this document is limited to steady state conditions and does not address fluctuations in the flow rate.

The test procedure determines the contaminant capacity of a filter, its particulate removal characteristics and differential pressure.

This test is intended for application to filter elements with an efficiency of less than 99% at particle size greater than 10μm.

NOTE Several test flow loops built into one test rig, or several test rigs, would be necessary to cover the complete flow range of 2l/min to 600l/min.

Committee	MCE/21/6
DevelopmentNote	Supersedes 16/30316730 DC. (07/2017)
DocumentType	Standard
Pages	44
PublisherName	British Standards Institution
Status	Current
Supersedes	16/30316730 DC : 0

Standards	Relationship
ISO 4548-12:2017	Identical

ISO 3968:2017	Hydraulic fluid power — Filters — Evaluation of differential pressure versus flow
ISO 11943:1999	Hydraulic fluid power On-line automatic particle-counting systems for liquids Methods of calibration and validation
ISO 11841-2:2000	Road vehicles and internal combustion engines — Filter vocabulary — Part 2: Definitions of characteristics of filters and their components
ISO 11171:2016	Hydraulic fluid power Calibration of automatic particle counters for liquids
ISO 2942:2004	Hydraulic fluid power Filter elements Verification of fabrication integrity and determination of the first bubble point
ISO 1219-1:2012	Fluid power systems and components — Graphical symbols and circuit diagrams — Part 1: Graphical symbols for conventional use and data-processing applications
ISO 16889:2008	Hydraulic fluid power Filters Multi-pass method for evaluating filtration performance of a filter element
ISO 12103-1:2016	Road vehicles — Test contaminants for filter evaluation — Part 1: Arizona test dust
ISO 11841-1:2000	Road vehicles and internal combustion engines — Filter vocabulary — Part 1: Definitions of filters and filter components
ISO 4021:1992	Hydraulic fluid power — Particulate contamination analysis — Extraction of fluid samples from lines of an operating system
ISO 4405:1991	Hydraulic fluid power — Fluid contamination — Determination of particulate contamination by the gravimetric method

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BS ISO 4548-12:2017

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

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