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Measuring Aircraft Gas Turbine Engine Fine Fuel Filter Element Performance
- Aerospace Standard
- ARP1827C
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Aerospace Recommended Practice (ARP) delineates two complementary filter element performance ratings: (1) dirt capacity, and (2) filtration efficiency, and corresponding test procedures. It is intended for non-cleanable (disposable), fine fuel filter elements used in aviation gas turbine engine fuel systems.
Rationale
The document is being revised as follows: (1) Clarification of test fluids in 1.4. (2) Addition of a footnote in references that ISO 4402 has been withdrawn. (3) In 4.1.1, addition of a requirement for test fuel integrity. IFT requirement for test fuel changed to a minimum of 27 dynes/cm which can be more realistically achieved without impacting test results significantly. The IFT requirement has been clarified to be reflective of how the testing is actually performed. (4) In 4.1.1, addition of kinematic viscosity and density measurement, since this is necessary information when comparing the results for different test fluids. (5) Filter element rating in Table 1 changed from 1000 to 200 to be more reflective of filter element efficiency ratings utilized in aerospace. (6) Paragraph 6.5.4 specifies a new level of cleanliness since the reference to the cleanliness level stated in 6.3.5 was not applicable to this step. (7) Validation counts in Table 2 updated based upon the results of the ‘ISO Fine Test Dust (ISO FTD) Particle Count Mini-Round Robin’ conducted by ISO, which is more representative of recent lots of ISO FTD. (8) Volume changed in 6.6.3.2 from 500 mL to 100 mL since the larger volume is not necessary, given the high gravimetric levels. (9) New 6.6.3.3 inserted which requires a gravimetric analysis be performed on the injection fluid sample collected in 6.6.3.2, prior to performing the multi-pass test, in order to confirm the concentration of the contaminant in the contaminant injection system prior to the test. (10) Volume changed in the newly numbered 6.6.3.10 from 500 mL to 100 mL as the larger volume is not necessary, given the high gravimetric levels. (11) Update of references and addition of references ASTM D445, ASTM D1298, and ASTM D7566. (12) Editorial changes for clarity throughout the document.
Recommended Content
Topic
Data Sets - Support Documents
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Table 1 | Recommended particle sizes to be counted | |
Table 2 | Validation counts |
Issuing Committee
AE-5B Aircraft and Engine Fuel and Lubricant Sys Components
Welcome to the AE-5B, Aerospace Fuel, Inerting and Lubriation Systems public forum area.
Scope: Has responsibility for the resolution of problems in either design or service usage of aerospace fuel, oil and oxidizer systems, their components such as valves, pumps, couplings, fuel cells, quantity and flow gages, and tanks, and related problems as presure surger, icing, electrification, and safety. Develops standards addressing fuel, oil and oxidizer systems. For details about SAE's online privacy policy; copyright, content license, and reliability statements; and membership information, click on the link to "Info on Privacy, Copyright, and Membership" link in the folders area below. No copyrighted material may be posted in this forum. SAE is not liable for opinions expressed or information posted to this forum. All information posted becomes the property of SAE.Reference
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