This SAE Aerospace Recommended Practice (ARP) establishes a method for evaluating the particulate matter extracted from the working fluid of a hydraulic system or component using a membrane. The amount of particulate matter deposited on the membrane due to filtering a given quantity of fluid is visually compared against a standard membrane in order to provide an indication of the cleanliness level of the fluid.
| SAE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | ARP4285A |
| Product Name | Aerospace - Evaluation of Particulate Contamination in Hydraulic Fluid - Membrane Procedure |
