MIL-DTL-17902G(SH)
FIGURE 6. Jig for conditioning straight section of hose.
4.5.8.2.2.3 Procedure. The specimen shall be positioned in the apparatus and filled with Reference Fuel B of
ASTM D471 to at least the height of the fluid on the outside of the specimen. The fluid surrounding the outside of
the specimen shall be Reference Fuel A of ASTM D471. The specimen shall remain in contact with the test fluids
for a period of 46±¼ hours at a temperature of 70 to 80 °F. At the end of this period, the specimen shall be removed
and dried for a period of time not exceeding 30 minutes. The adhesion test specimens shall be cut from the
specimen hose length during the drying period. The adhesion shall be determined within 2 minutes after completion
of the drying period in accordance with ASTM D413.
4.5.8.3 Change in volume. The percent change in volume after immersion shall be measured by the procedure
specified in ASTM D471, except the specimen shall be immersed in Reference Fuel B for 46±¼ hours at a
temperature of 70 to 80 °F.
4.5.8.4 Resistance to ozone.
4.5.8.4.1 Test specimen. The specimen shall be a strip 1 by 5 inches taken lengthwise from the cover of the
sample hose obtained as specified in 4.3.2.2. The specimen shall be buffed smooth on both sides. The maximum
thickness after buffing shall be 0.100 inch. Duplicate specimens shall be tested.
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