MIL-F-81334B, MILITARY SPECIFICATION: FOAM, PLASTIC, FLEXIBLE, OPEN CELL POLYESTER TYPE, POLYURETHANE (05-Jul-1977)
MIL-F-81334B, MILITARY SPECIFICATION: FOAM, PLASTIC, FLEXIBLE, OPEN CELL POLYESTER TYPE, POLYURETHANE (05-Jul-1977)., This specification covers flexible, open cell, polyester type, polyurethane foam. (See 6.1)