We perform testing according to military specification MIL-PRF-7808, which covers the requirements for two grades of aircraft turbine engine lubricating oil, identified as Grade 3 (NATO Symbol 0-148) and Grade 4 (NATO Symbol 0-163).
The lubricating oil is intended for use in specific models of aircraft turbine engines, helicopter transmissions, accessory and auxiliary power units, and other types of equipment that require a synthetic base oil. Grade 3 is intended for normal use unless otherwise specified. Grade 4 is intended for applications which require higher viscosity and greater thermal stability.
This specification supersedes military specification MIL-L-7808.
Alcor Petrolab is the best equipped non-governmental laboratory in the world for performing MIL-PRF-7808L qualification testing and MIL-PRF-7808L conformance testing. The following is a list of tests we perform according to MIL-PRF-7808L. To see more information about one of these tests, click on the test method number.
Table 1 tests
- FTM 3013 – Particulate Contamination
- ASTM D664 – Acid Number
- ASTM D445 – Kinematic Viscosity
- ASTM D2532 – Kinematic Viscosity
- ASTM D92 – Flash & Fire Point
- ASTM D972 – Evaporative Loss
- FTM 3213 – Foaming, Static
- FTM 3214 – Foaming, Dynamic
- FTM 5003 – Deposition Test
- FTM 5321 – Lead Corrosion
- FTM 5305 – Corrosion (Bronze, Copper & Silver)
- FTM 3411 – Thermal Stability & Corrosivity
- ASTM D2603 – Sonic Shear Stability
- ASTM D5185M – Metals in Fuel or Oil by ICP
- FTM 3403 – Compatibility of Turbine Lubricating Oils
- MIL-PRF-7808L §4.4.4 – Storage Stability
- MIL-PRF-7808L §4.4.5 – Storage Stability
Table 2 tests
Table 3 tests
