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BS 7403-11:1998

Current
Current

The latest, up-to-date edition.

Full-flow lubricating oil filters for internal combustion engines Methods of test for self-cleaning filters
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-15-1998

1 Scope
2 Normative references
3 Definitions
4 Graphical symbols
5 Test method for absolute rating (maximum particle
    diameter transmitted)
    5.1 Principle
    5.2 Test equipment and materials
    5.3 Test procedure
    5.4 Test results
6 Test method for pressure differential/flow characteristics
    6.1 Principle
    6.2 Test equipment and materials
    6.3 Test procedure
    6.4 Test results
7 Test methods for evaluation of gravimetric efficiency
    and self-cleaning ability of the complete filter
    7.1 Principle
    7.2 Test equipment and materials
    7.3 Test procedure for continuous self-cleaning filters
    7.4 Test procedure for intermittent self-cleaning
          filters
    7.5 Test results
8 Test for resistance of the filtering element to high
    differential pressure
    8.1 Principle
    8.2 Test equipment and materials
    8.3 Test procedure
    8.4 Test results
9 Test for resistance of the filtering element to
    elevated temperature
    9.1 Principle
    9.2 Test equipment and materials
    9.3 Test procedure
    9.4 Test results
10 Test for the effects of the presence of water
    10.1 Principle
    10.2 Test equipment and materials
    10.3 Test procedure
    10.4 Test results
11 Test for mechanical stability to alternating direction
    of flow
    11.1 Principle
    11.2 Test equipment and materials
    11.3 Test procedure
    11.4 Test results
    11.5 Acceptance criteria
Annex A (informative) Examples of graphs of differential
pressure versus time
Annex B (informative) Bibliography

Defines methods of test for evaluation of the characteristics of self-cleaning oil filters for internal combustion engines. Applies to filters where self cleaning is continuous or intermittent.

This part of ISO 4548 specifies test methods for evaluating the characteristics of self-cleaning oil filters for internal combustion engines. It is applicable to filters in which self-cleaning is continuous or intermittent.

The removal of retained particles from the filter is achieved by periodic reversal of the direction of the fluid flow through the elements. However, this also applies mechanical stresses to the filter media. The tests specified in this standard are designed to check the filtration performance of the elements under simulated operating conditions and to confirm their ability to withstand, without damage, variations in oil pressure, temperature, direction of flow and the presence of water.

The equipment and procedures specified in this part of ISO 4548 are recommended for filters having a nominal flow rate of up to 1 600 l/min.

Committee
MCE/21/6
DevelopmentNote
Also numbered as ISO 4548-11 Supersedes 95/705766 DC (07/2003)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 11841-2:2000 Road vehicles and internal combustion engines — Filter vocabulary — Part 2: Definitions of characteristics of filters and their components
ISO 3722:1976 Hydraulic fluid power — Fluid sample containers — Qualifying and controlling cleaning methods
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 4548-4:1997 Methods of test for full-flow lubricating oil filters for internal combustion engines Part 4: Initial particle retention efficiency, life and cumulative efficiency (gravimetric method)
ISO 7967-6:2005 Reciprocating internal combustion engines Vocabulary of components and systems Part 6: Lubricating systems
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
ISO 4548-1:1997 Methods of test for full-flow lubricating oil filters for internal combustion engines — Part 1: Differential pressure/flow characteristics
ISO 3448:1992 Industrial liquid lubricants — ISO viscosity classification

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