PLTL-135 Oil Separation as per MIL-PRF-85336
This test determines the separation of oil from lubricating greases intended for automatic weapons as per mil-prf-85336.
The grease is placed into a sample container as per the method and held at the test temperature (40°C) for the test time (168 hours). The depth of oil separated from the grease is measured. A depth of 2mm or less is reported as “pass”.