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SAE AIR6985

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This SAE Aerospace Information Report (AIR) reviews performance testing parameters for fuel filter elements utilized in gas turbine engine and APU main fuel systems. The scope is limited to main fuel filter elements rated at 35 μm(c), or finer, which constitute the majority of contemporary engine main fuel system filtration. This document does not address icing tests specific to fuel filter elements since they are only required for certain engine designs and are custom test procedures. General information on icing tests for aircraft fuel system components can be found in ARP1401. This document also does not address fuel filter elements utilized in fuel hydraulic systems since it is outside the scope of this document, This document is confined to laboratory testing of filter element performance to qualify the filtration medium and filter element construction as opposed to qualification of the complete fuel filter assembly. The testing discussed here is usually followed by laboratory and on-engine testing of the entire fuel filter assembly (including filter element, housing, valving, etc.) which is outside the scope of this AIR. Purpose Performance testing is necessary to assure that filter elements retain their functional characteristics under operating conditions. Variations in filter element testing methods and requirements make comparison of performance test results difficult. In order to minimize these issues, this AIR describes standard filter element performance test procedures, allowing both manufacturer and customer a common means to specify, control, and evaluate fuel filter elements. This document highlights recommended tests and the appropriate test sequence. The methodology discussed should be incorporated in fuel filter element specifications.

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  • Standard fra SAE_AC
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  • Varetype: IS