A-A-52473
3. Foam. The foam shall be 0.50 inch-thick closed-cell foam insulation.
c. Design and construction. The design and construction (e.g., configuration, size) of floor mats made from this insulation material shall be in accordance with the applicable engineering drawing (AED) (see note b). The color of the outer vinyl covering shall be green 383 per FED-STD-595.
d. Performance.
1. Adhesion strength. The adhesion strength of the vinyl to the barrier and the barrier to the foam at a 180 degree peel shall not be less than 2.2 pounds per linear inch in accordance with ASTM D903.
2. Thermal conductivity. The thermal conductivity of the insulation shall be not greater than 0.35 British thermal unit (Btu) /hour/square foot/ degree Fahrenheit /inch in accordance with ASTM C117.
3. Insulation tear-resistance. The tear resistance of the insulation shall be not less than 25 pounds per inch (ppi) as specified in ASTM D624, die C.
4. Barrier/vinyl tear-resistance. The tear resistance of the barrier/vinyl shall be not less than 130 ppi in accordance with ASTM D624, die C.
5. Tensile strength. The tensile strength of the insulation shall be not less than 100 pounds force per square in (psi), and the tensile strength of the barrier-vinyl shall be not less than 500 psi.
6. Abrasion resistance. There shall be not more than 0.025 percent weight loss of the insulation when tested in accordance with ASTM D4158-92, the load shall be 500 grams and the number of cycles shall be 1000.
7. Flammability. The burning rate of the insulation shall be not greater than 2 inches per minute in accordance with SAE J369.
8. High temperature. The insulation shall be physically stable when exposed to temperature of 250 degrees Fahrenheit (°F) for seven 24-hour periods.
9. Low temperature. The insulation shall remain physically stable when exposed to a temperature of -40° F for 4 hours.
10. Low temperature (cold bend). After being cold soaked at -30°F, for 4 hours, the insulation shall evidence no cracks while bent 180 degrees around a 1-inch mandrel.
11. Chemical resistance. The insulation shall evidence no shrinkage when immersed in diesel fuel or lubricating oil, and shall evidence not more than 3-percent shrinkage when immersed in gasoline.
12. Material safety Data Sheet (MSDS). The contractor shall prepare an MSDS when required to comply with the provisions of FED-STD-313 (see note b).
e. Identification markings. Unless otherwise specified in the AEO, identification and marking of floor mats made from this insulation material shall be permanent and legible. It shall include, as a minimum, the AED part number and the manufacturer, s CAGE code and part number.
QUALITY ASSURANCE PROVISIONS
a. Responsibility for inspection. The contractor is responsible for the performance of all inspection (examinations and tests).
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