MIL-PRF-22191F
Seam strength at room temperature (no accelerated aging required).
Oil resistance (delamination) (multi-ply materials only).
Transparency (accelerated aging not required).
Watervapor transmission rate after room temperature flexing (as received and aged), type I
only.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified
in the contract or order (see 6.2). When actual packaging of materiel is to be performed by
DoDor in-house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain requisite packaging requirements. Packaging requirements are maintained
by the Inventory Control Point's packaging activities within the Military Service or Defense
Agency, or within the military services system commands. Packaging data retrieval is available
from the managing Military Department's or Defense Agency's automated packaging files, CD-
ROM products, or by contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful,
but is not mandatory.)
6.1 Intended use. The barrier materials covered by this specification are intended for use in
specialized military methods of preservation. The combination of all performance characteristics of
MIL-PRF-22191; water vapor transmission rate; transparency; contact corrosivity; storage stability;
seam strength and fabrication; puncture, aging, blocking, and curl resistance; delamination;
waterproofness; water resistance of markings provide the necessary requirements for protection from
exposure to the extremes of the navy/naval aviation environment. Navy/naval aviation items are
exposed to high moisture, high salt concentration, transfer at sea, rough handling, and minimal
storage conditions. There are no commercial equivalents that meet the physical, mechanical, and
corrosion requirements necessary to protect materiel that is exposed to the operational naval aviation
environment. Specifically, Methods of Preservation 31, 32, 33, 41 and 51 of MIL-STD-2073-1 use
MIL-PRF-22191 as the premier source of barrier materials that is transparent and provides
waterproof and watervaporproof (and watervaporproof with desiccant) protection for applicable
items encountering the above conditions. MIL-PRF-22191 provides the building blocks for
applying specialized military preservation techniques approved under MIL-STD-2073-1.
6.1.1 Type I use. Type I material is intended to be used in all packaging applications where
watervaporproof, greaseproof barrier materials are required.
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