MIL-DTL-83054C
5 minutes using a 4-liter charge of type I fluid conforming to ASTM-D471 which has been prefiltered
through a 0.8 micron Millipore Filter Corporation filter. Upon completion of the test cycle, the
specimen shall be positioned slightly above the fluid level and allowed to drain for 5 minutes prior to
removal. The test fluid shall then be tested for level of solid contamination in accordance with Appendix
A2 (laboratory filtration) of ASTM-D2276 (see 6.4.2). Following filtration of the test fluid and just
prior to removal of the filter pad from the apparatus, the filter and contamination shall be neutralized of
static charge with a air deionizer (see 6.5). This step should help to reduce the loss of particles from the
filter pad during transfer to the drying oven. Each Millipore filter used shall be dried at 194°F (90°C)
for a minimum of 15 minutes and then cooled for a minimum of 15 minutes. A minimum of one control
filter shall be run for each set of samples. Test results shall be reported in milligrams per cubic foot of
material.
4.6.16 Steam autoclave exposure test. Testing shall be conducted in accordance with ASTM D 1564
steam autoclave test, condition B, for types I, II, III, IV, and V materials. Types I, II, and III shall be
tested for 5 hours at 250° +5°F (121.1° +2.8°C), and types IV and V shall be tested for 10 hours at
250° +5°F (121.1° +2.8°C). Tension tests as specified (see 4.7.4) shall be conducted on five control
specimens and five exposed specimens. Prior to testing, exposed specimens shall be post-dried for 30
minutes at 160°F (71.l°C) and then cooled at room temperature for 30 minutes. For all but production
testing the results for tensile, stress, and elongation shall be reported before and after exposure, and the
average percent change in tensile strength calculated. For production, the average values for tensile
strength and elongation before and after exposure shall be reported as well as the percent change in
tensile strength.
4.6.17 Fluid immersion tests. Fluid immersion tests shall be conducted on the baffle material under the
following conditions (see 3.7.1):
a. Grade JP-5 turbine fuel conforming to MIL-DTL-5624 for 4 weeks at 200° +5°F (93.3°
+2.8°C).
b. Grade JP-4 turbine fuel conforming to MIL-DTL-5624 for 24 weeks at 160° +5°F (71.1°
+2.8°C).
c. Hydraulic fluid conforming to MIL-PRF-5606 for 4 weeks at 160° +5°F (71.1° +2.8°C).
d. Lubricating oil conforming to MIL-PRF-7808 for 4 weeks at 160° +5°F (71.l° +2.8°C).
e. Grade 1100 lubricating oil con forming to SAE-J1899 for 4 weeks at 160° +5°F (71.1°
+2.8°C).
f. Grade JP-4 turbine fuel conforming to MIL-DTL-5624 for 4 weeks at 75°F (23.9°C) (type IV
and V foam only).
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