This SAE Aerospace Recommended Practice (ARP) is intended to evaluate corrosion inhibiting properties of synthetic gas turbine lubricants and gearbox oils. This ARP is a modified form of a method developed in the United Kingdom as DERD Test Method/1, Method No. 18, Issue 1 of January 1984.
This document is no longer used for new oil design. The committee intends to stabilize the document in order to insure it is available for historical and/or reference purposes.