MIL-PRF-63460E
4.1.3 Sampling for tests. Samples for tests shall be taken in accordance with ASTM D4057
or ASTM D4177, as applicable.
4.2 Support and ownership verifications.
4.2.1 Graphite. Objective evidence shall be examined to verify the product formulation
contains no graphite or powdered metals. (See 6.3.2)
4.2.2 Ozone depleting substances. Objective evidence shall be examined to verify the
product formulation contains no ODSs. (See 6.3.2)
4.2.3 Toxicity and hazardous materials. A Toxicity Clearance by the US Army Center for
Health Promotion and Preventive Medicine (CHPPM) shall confirm conformance with the
requirements of 3.2.3. (see 6.4).
4.2.4 Color and appearance. A 4 oz translucent container of product shall be shaken for a
period not to exceed 30 seconds to disperse all visible residue. Immediately after shaking, the
product shall be visually inspected to check for full dispersion of residue. Failure of residue to
fully disperse after shaking or failure of the product to achieve a uniform color shall be cause for
failure of product qualification.
4.2.5 Physical properties. Verification tests shall be performed IAW methods listed in Table
IV, and 4.2.6 to verify that the physical properties meet specified requirements.
TABLE IV. Test methods.
Properties
Method
Flash Point
ASTM D56 1/
Pour Point
ASTM D97
Viscosity (w/o solid materials @ +40 °C)
ASTM D445 2/ a.
Viscosity (w/o solids & solvent @ -40 °C)
ASTM D445 2/ a. & b.
Wear Preventive Characteristics
ASTM D4172 3/ (test condition B)
1/ If the flash point is over 79 °C (175 °F), use the Cleveland Open Cup method, ASTM D92.
2/ Use this method with the following exception:
a. The Kinematic viscosity shall be determined on that portion of the product containing no
solid materials. Where periodic qualification re-evaluation tests or quality conformance tests are
conducted on lots received from a manufacturer whose product contains particulate matter, the
product must be centrifuged and pressure filtered using a Gelman, Filter-Gauge, 0.45 micron pore
diameter and 0.2 micron pore diameter, stack (top to bottom), or equivalent method.
b. When evaluating the viscosity of the product without solvents, evaporate the solvents using
ASTM D972 at 100 °C (212 °F) for the required time or until no further weight loss is observed.
Note: Conventional laboratory ovens may be used in lieu of that specified in the test method.
3/ Use this method with the following exceptions:
a. Use a sample of 10 ± 0.5 milliliters.
b. Perform three runs and report the average of the three wear scar determinations
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