MIL-R-85523A(AS)
4.8.16 Ozone-resistance. The three elastomer test slabs submitted for qualification inspection shall be tested for ozone-resistance. The test apparatus shall be in accordance with ASTM D 1149-91. The test slabs shall be elongated 20 percent, placed in an ozone-free atmosphere for 24 hours, then placed in the ozone chamber. The chamber shall be adjusted to 100° ± 2°F and to give an exposure of ozone concentration of 120 ± 10 parts by volume of ozone per million parts by volume of air. The air-ozone velocity in the chamber shall be at least 2 feet per second. The material shall be exposed to these conditions for 60 minutes. The test slabs shall be examined under a 10X magnification and pass the requirements specified in 3.6.16.
4.8.17 Oxygen regulator purge. The regulator shall be connected to a regulated source of oxygen (4.7.1). An inlet pressure of 120 psig shall be applied and the regulator shall free flow for 1 to 3 minutes. The regulator shall pass the requirements of 3.6.17.
4.8.18 Inlet fitting. The inlet fitting of the regulator shall be removed to examine the inlet filter. The inlet fitting shall be reinstalled on the regulator. The regulator shall pass the requirements of 3.6.18.
5. PACKAGING
5.1 Preservation. Unless otherwise specified in the contract or order, preservation shall be Level A, using Method IIb of MIL-P-116, with one regulator per unit package (see 6.2.1f). Preservatives shall not be used. All openings in the regulator shall be closed with suitable closure to prevent entry of dirt or foreign matter during shipment and storage.
5.2 Packing. Packing shall be Level A, B, or C, as specified in the contract or order (see 6.2.1f).
5.2.1 Level A. Each unit, packaged as specified in 5.1, shall be packed for shipment in containers conforming to PPP-B-601 or PPP-B-621, Overseas Type.
5.2.2 Level B. Each unit, packaged as specified in 5.1, shall be packed for shipment in containers conforming to PPP-B-601 or PPP-B-621, Domestic Type; fiberboard boxes conforming to PPP-B-636 or PPP-B-640, Weather Resistant may be used provided that the gross weight is not greater than the applicable specification limitation.
5.2.3 Level C. Units, preserved as specified in 5.1, shall be packed for shipment in exterior type shipping containers conforming to rules and regulations pertaining to mode of transportation and acceptable to carrier at the lowest possible tariff rate that shall ensure safe delivery. Contractor's commercial/industrial packing procedure may be used when the above criteria are met.
5.3 Marking. The exterior and interior containers shall be marked in accordance with MIL-STD-129. In addition, the following precautionary marking shall be required on each unit package and shipping container:
CAUTION
DO NOT ALLOW PETROLEUM CONTAMINANTS OF ANY
KIND TO BE USED/STORED ON OR ABOUT THESE CONTAINERS.
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