MIL-I-24172A, MILITARY SPECIFICATION: INSULATION, PLASTIC, CELLULAR FOAM, RIGID, PREFORMED AND FOAM-IN-PLACE (19-NOV-1986) [SUPERSEDED BY MIL-PRF-24172B]

MIL-I-24172A, MILITARY SPECIFICATION: INSULATION, PLASTIC, CELLULAR FOAM, RIGID, PREFORMED AND FOAM-IN-PLACE (19-NOV-1986) [SUPERSEDED BY MIL-PRF-24172B]., This specification establishes the requirements for a rigid cellular foam material. The material cove red by this specification is intended primarily for insulation of refrigerator spaces. The materials traditionally used to meet the requirements of this specification were organic polyisocyanate and polyol resin containing a blowing agent.