MIL-PRF-22191F (AMENDMENT 1), PERFORMANCE SPECIFICATION: BARRIER MATERIALS, TRANSPARENT, FLEXIBLE, HEAT-SEALABLE (26 OCT 2009) [SUPERSEDING MIL-B-22191D]

MIL-PRF-22191F (AMENDMENT 1), PERFORMANCE SPECIFICATION: BARRIER MATERIALS, TRANSPARENT, FLEXIBLE, HEAT-SEALABLE (26 OCT 2009) [SUPERSEDING MIL-B-22191D]., This specification establishes the requirements for transparent, flexible, heat-sealable barrier materials having waterproof or low water vapor transmission characteristics for use in military packaging (see 6.1).