MIL-PRF-6081D
ASTM D2273
Standard Test Method for Trace Sediment in Lubricating Oils
(DoD adopted)
ASTM D2532
Standard Test Method for Viscosity and Viscosity Change After
Standing at Low Temperature of Aircraft Turbine Lubricants
(DoD adopted)
ASTM D4636
Standard Test Method for Corrosiveness and Oxidation Stability of
Hydraulic Oils, Aircraft Turbine Engine Lubricants, and Other Highly
Refined Oils
(Application for copies should be addressed to the American Society for Testing and Materials, 100 Barr Harbor
Drive, West Conshohocken PA 19428-2959.)
2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited
herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws
and regulations unless a specific exemption has been obtained.
3. REQUIREMENTS
3.1 Qualification. The jet engine lubricating oils furnished under this specification shall be products which are
authorized by the qualifying activity for listing on the applicable qualified products list at the time of award of
contract (see 4.2 and 6.3).
3.2 Materials. The composition of this lubricating oil is not limited; however, viscosity index improvers and known
or suspected human carcinogens (as defined by the Occupational Safety and Health Standards Hazard
Communications, 29 CFR 1910.1200) are prohibited. The lubricating oil may contain oxidation inhibitors and pour-
point depressants. The engine lubricating oil shall have no adverse effect on the health of personnel when used for
its intended purpose. Recycled basestocks are permitted; however, each batch must be fully tested in accordance with
all qualification requirements of this specification. The manufacturer may be required to submit certification of
conformance to this paragraph (see 6.2).
3.2.1 Ozone depleting chemicals. The following tests currently require the use of toxic or ozone depleting
chemicals (ODCs), but an acceptable substitute has been identified for each test.
ASTM Test Method
Toxic Chemicals/
Acceptable Substitutes
ODC Substance
Toluene
n-Heptane
ASTM D2532
Viscosity and Viscosity Change
After Standing at Low Temperature
of Aircraft Turbine Lubricants
Trichlorotrifluoroethane
n-Heptane
ASTM D4636
Corrosiveness and Oxidation
1,1,1-Trichloroethane
Stability of Hydraulic Oils, Aircraft
Turbine Engine Lubricants, and
Other Highly Refined Oils
Federal Test Method
1,1,1-Trichloroethane
n-Heptane
FTM 5308
Corrosiveness and Oxidation
or
Stability of Light Oils
Acetone
(Metal Squares)
3
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