MIL-PRF-46002D
4.2.3.3.5 Test procedure. Three test assemblies for each grade of oil shall be tested in
accordance with the vapor phase protection test (see 4.2.2.2.2.5), with the exception that
following the test, the test strips shall be rated in accordance with the Copper Strip Classification
of ASTM D130. The test strips ratings shall not be more than number 3 (see 3.4.3).
4.2.4 Support and ownership requirements verifications.
4.2.4.1 Precipitation number and hydrocarbon solubility.
4.2.4.1.1 Solid sediment. To determine conformance to 3.5.1.1, the oil shall be tested in
accordance with ASTM D91, and shall generate not more than 0.5 mL mean total volume of
sediment.
4.2.4.1.2 Oil separation. To determine conformance to 3.5.1.2, after the completion of
the solid sediment test (see 4.2.4.1.1), store the sample for 24 hours at 25 3C. After the
24 hours, the oil shall not show evidence of stratification or separation of the oil or its additives
from the test solution. Slight suspension is permitted if recentrifuging does not increase the
precipitation number or cause layer formation.
4.2.4.2 Toxicity. To determine conformance to 3.5.2, components of the oil s
formulation shall be compared with the toxic limits established by the guidelines of OSHA
29 CFR 1910.1200, the American Conference of Governmental Industrial Hygienists Threshold
Limit Values and Biological Indices and the most current National Toxicology Program s
Annual report on Carcinogens. Oils with components exceeding the toxic limits shall be
disqualified. Methods of quantitative determination shall be selected at the discretion of both the
qualifying activity and the manufacture/blender.
4.2.5 Environmental requirements verifications.
4.2.5.1 Flash point. To determine conformance to 3.6.1, the oil shall be tested in
accordance with ASTM D92, and shall exhibit minimum flash points of 115.5C for Grade 1 and
120C for Grade 2.
4.2.5.2 Pour point. To determine conformance to 3.6.2, the oil shall be tested in
accordance with ASTM D97, and shall exhibit maximum pour points of 45.5C for Grade 1 and
-23.5C for Grade 2.
4.2.5.3 Evaporation loss. To determine conformance to 3.6.3, the oil shall be tested at
100C in accordance with ASTM D972, with one exception: Use a 15.00 0.05 g sample. The
oil shall exhibit maximum mass percent evaporation losses of 25% for Grade 1 and 5% for Grade
2.
4.2.5.3.1 Viscosity change after evaporation loss. To determine conformance to 3.6.3.1,
after completing the evaporation loss test (see 4.2.5.3), determine the viscosity of the oil sample
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