MIL-PRF-2104J
TABLE XVI. Properties of used oil pumpability.
Primary
Requirement
Rated or measured parameter
performance
criteria
Viscosity after 75 h of Mack T-10A test, or viscosity after
A
25 000
100 h of Mack T-12A test, tested at -20°C, mPa-sA, max
Viscosity after 75 h of Mack T-10A test, or viscosity after
B1/
25 000
100 h of Mack T-12A test, tested at -20°C, mPa-s, max
Yield stress, PaB
< 35
A
millipascal second
B
pascal
1/
If yield stress is detected use requirement B
3.5 Physical and Chemical properties. All grades listed in this specification shall
comply with the chemical and physical requirements listed in sections 3.5.1 to 3.5.10,
and Table XVII.
3.5.1. Evaporation loss. All grades shall limit oil volatility at high temperatures in
accordance with Table XVII. See section 4.3.10 for the verification test method.
3.5.2 Homogeneity and miscibility. All grades shall remain homogeneous and
miscible with each other over ambient and operating temperatures typical for the
application (see 1.1). No evidence of separation shall be detected when the candidate
oil is diluted with standard reference oils and submitted to the prescribed cycle of
temperature changes outlined in the test procedure designated in section 4.3.11.
3.5.3 Flash point. All grades shall limit the overall flammability hazard of its
components in accordance with Table XVII. See section 4.3.12 for the verification test
method.
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