Which specifications are approved for hydraulic fluids?

The approval of hydraulic fluids for the Dassault Falcon 2000LXS hinges on their compatibility and performance under varying conditions. The specification MIL-H-5606 is a widely recognized standard for aviation hydraulic fluids, particularly for systems operating under high pressures and wide temperature ranges. This fluid is known for its excellent low-temperature properties and thermal stability, which are essential for the hydraulic systems in aircraft.

Additionally, another accepted specification is AIR, which covers the general use of various hydraulic fluids, reinforcing the reliability and performance required in aircraft operations. Fluids conforming to these specifications are routinely tested to ensure they meet stringent safety and performance criteria in aviation environments.

While MIL-J-5605, MIL-H-83282, and FAA-P-85485 are also significant in aviation fluids, their specific applications may differ. MIL-H-83282, for example, is more commonly referenced for fire-resistant hydraulic fluids in certain aircraft, while FAA-P-85485 deals with the characteristics of certain synthetic fluids but may not be as universally applicable for all hydraulic systems. Therefore, the selection of MIL-H-5606 or AIR as approved specifications aligns with the standards set for the Falcon 2000LXS hydraulic systems.