MIL-C-47244A (MI)
hydrocarbon-exposed resin system shall be self-extinguishing in not more than 2
seconds after ignition has been effected.
3.3.12 Blast erosion. The cured resin system shall withstand the erosive
effects of a supersonic blast, with erosive loss limited to a thickness of 0.080 inch.
Blast conditions shall be as follows:
a.
Temperature and pressure above the surface of the resin system shall be
not less than 2830șC and not less than 330 pounds per square inch gage
(psig), respectively.
b.
Direction of the blast shall be 90 ± 5 degrees with respect to the surface
of the resin system.
c.
The chemical composition (by percent weight ± 5 percent) of the gas
impinging on the resin system shall be:
(1)
Steam
-
1.01.
(2)
Hydrogen
-
3.47.
(3)
Carbon monoxide
-
36.88.
(4)
Nitrogen
-
7.94.
(5)
Hydrogen chloride
-
20.47.
(6)
Aluminum oxide
-
30.23.
d.
Duration of blast shall be not less than 90 milliseconds.
3.3.13 Shelf life. The shelf life of the base resin and curing agent shall be not
less than 6 months from the date of manufacture when stored in original unopened
container at a temperature not greater than 27șC.
3.3.14 Workmanship. The workmanship shall be such as to insure a high
quality product which is uniform and in conformance with this specification.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the contract or
purchase order, the contractor is responsible for the performance of all inspection
requirements (examinations and tests) as specified herein. Except as otherwise
specified in the contract or purchase order, the contractor may use his own or any other
facilities suitable for the performance of the inspection requirements specified herein,
5
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