Cooperating organizations
Foreword
Specification
1. General
1.1 Scope
2. Determination of pressure differential/flow
characteristics
2.1 Test rig
2.2 Test liquids
2.3 Test liquid volume
2.4 Test procedure
2.5 Test results
3. Determination of element bypass component
characteristics
3.1 Test rig
3.2 Test liquids
3.3 Test liquid volume
3.4 Test procedure
3.5 Test results
4. Determination of initial retention of inorganic
particles of specified sizes, variation in particle
retention, filter life and cumulative efficiency
4.1 Introduction
4.2 Test rig
4.3 Organic contaminant feed mechanism
4.4 Test liquids
4.5 Standard contaminants
4.6 Blending of organic contaminant for test
4.7 Test procedure, initial particle retention test of
complete filter
4.8 Test procedure, initial particle retention test of
filter element
4.9 Test procedure, variation in particle retention of
complete filter at changing pressure differential
during process of filter clogging
4.10 Test procedure, variation in particle retention of
filter element
4.11 Test procedure, life test of complete filter
4.12 Test procedure, life test of filter element
4.13 Test procedure, effect of water addition
4.14 Test results
5. Determination of filter element strength; resistance
to high pressure differential and elevated
temperatures
5.1 Introduction
5.2 Test rig
5.3 Test liquid and volume
5.4 Test procedure for resistance to high pressure
differential
5.5 Test procedure for resistance to elevated
temperatures
Table
1. Test flow rating, test oil volume and organic
contaminant feed rate
Appendices
A. Determination of non-combustibles and petroleum
ether insolubles by the filtration method
B. Determination of non-combustibles and petroleum
ether insolubles by the centrifuge method
C. List of symbols
Figures
1. Diagrammatic arrangement of test rig for
determination of pressure differential/flow
characteristics, element bypass component
performance, initial particle retention, variation
in particle retention life and cumulative efficiency
2. Contaminant feed quadrant
3a. Filter installation for particle retention test
3b. Details of slurry addition vessel
4. Pressure differential/flow characteristics
5. Element bypass characteristics
6. Variation in particle retention
7. Life and cumulative efficiency
8. Specification for particle size distribution of
test powder, MIRA Grade 2 (Andreasen sedimentation)
9. Specification for particle size distribution of
test powder, MIRA Grade 3 (Andreasen sedimentation)
10. Specification for particle size distribution of
test powder, MIRA Grade 4 (Andreasen sedimentation)
11. Specification for particle size distribution of
test powder, MIRA Grade 5 (Andreasen sedimentation)