SAE AIR4057B PDF

Secondary Filters for Fluid System Reliability (Stabilized: Sep 2012)
standard by SAE International, 09/24/2012

SAE AIR4057B – Secondary Filters for Fluid System Reliability (Stabilized: Sep 2012)

This document has been declared “Stabilized” and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.

This SAE Aerospace Information Report (AIR) discusses the design choices and engineering trade-offs available to the system designer in the efficient selection and application of Last-Chance filters in contrast to main or primary system filters.

This document explains the use of secondary (or Last-Chance) filters in fluid systems.