MIL-PRF-81322G
4.5 Test methods. The properties of the grease shall be tested in accordance with the test
methods and paragraphs specified in table II.
TABLE II. Examinations and test methods.
PROPERTIES
TEST METHOD OR PARAGRAPH
Corrosiveness (copper strip)
ASTM-D4048
Dirt
FED-STD-791, method 3005
Dropping point
ASTM-D2265
Evaporation
ASTM-D2595
High temperature performance
ASTM-D3336
Load carrying capacity
ASTM-D2596
Low temperature torque 1/
ASTM-D1478
Oil separation
FED-STD-791, method 321
Oscillation
Friction and wear
4.5.1
Oxidation stability
ASTM-D942
Rust preventive properties
ASTM-D1743
Steel on steel wear
ASTM-D2266
Storage stability
4.5.2
Swelling of synthetic rubber, NBR-L
ASTM-D4289
Water washout
ASTM-D1264
Worked penetration
ASTM-D217
Worked stability
FED-STD-791, method 313
Workmanship
Visual
Compatibility
4.5.3
Odor
4.5.4
1/
Observation for skidding or ball sliding shall be made during test run.
4.5.1 Oscillation - friction and wear. Oscillation - friction and wear shall be determined in
accordance with ASTM-D3704 and the following:
Time: 35,000 cycles
Angle of oscillation: 90 °
Test ring: Type S-10
The test block shall be an ASTM-B150M, alloy C64200 having a Rockwell B hardness of HRB
88 ± 3 with dimensions and surface finish the same as those specified for H-30 or H-60 blocks.
6
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