BS ISO 4548-12:2017
Current
The latest, up-to-date edition.
Methods of test for full-flow lubricating oil filters for internal combustion engines Filtration efficiency using particle counting and contaminant retention capacity
Hardcopy , PDF
English
11-07-2017
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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.
| Committee |
MCE/14
|
| DevelopmentNote |
Supersedes 16/30316730 DC. (07/2017)
|
| DocumentType |
Standard
|
| Pages |
44
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
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.
| 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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