A-A-549D
(4). Contract Corrosivity Test. Every 24 month, or whenever there is a change in manufacturing process or materials, if less than 24 month, two specimens from each sample unit shall be tested for contact corrosivity on aluminum panels as specified by Method 3005 of FED-STD-101. The solvent cleaning procedure specified by ASTM D 3330 may be used to clean the panels after finishing with abrasives instead of the solvent cleaning procedure specified by Method 3005. One specimen from each sample unit shall be tested bubble side down and 1 specimen bubble side up. No corrosion shall be visible on the surface of any test panel at the end of the exposure period.
(5). Low Temperature Flexibility Test. Every 12 months, or whenever there is a change in manufacturing process or materials, if less than 12 month, the cushioning material shall be tested for low temperature flexibility. One specimen measuring 10.8 + 0.64 x 31.1 + 0.64 cm (4 + 1/4” x 12 + 1/4”) shall be cut from each of 4 rolls or 4 sheets of cushioning material. Two specimens shall have the 30.5 cm (12”) dimension perpendicular to the length of the roll of sheet. Condition all the specimens and a round, 0.64 cm (1/4”), steel mandrel for at least 3 hours at -29 + 1.1oC (20- + 2oF) in a manner which allows circulation of air against both surfaces of the cushioning material. When conditioning is complete, without removing the cushioning material or the mandrel from the conditioned area, bend each specimen around the mandrel through an angle of 180o, with the bubble side facing up, at a rate such that bending takes 2 to 3 seconds. Continue conditioning the cushioning material and the mandrel for an additional 3 hours, then bend the pieces around the mandrel again in the same manner they were bent previously, except that the bubble side shall face down. The cushioning material shall show no cracks, tears, or separation.
4. REGULATORY REQUIREMENTS: The contractor shall certify that the material used contains a minimum of 30% recycled plastic including a minimum of 15% post consumer recovered plastic. The Government reserves the right to require proof of such conformance prior to first delivery, and thereafter as may be otherwise provided for under the provisions of the contract.
5. PACKAGING, PACKING AND MARKING: Shall be as specified in the contract or purchase order.
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