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FED HH-I-1972/3
- INSULATION BOARD, THERMAL, POLYURETHANE OR POLYISOCYANURATE FACED WITH PERLITE INSULATION BOARD ON ONE SIDE AND ASPHALT/ORGANIC FELT OR ASPHALT/GLASS FIBER FELT ON THE OTHER SIDE OF THE FOAM (NO S/S DOCUMENT)
- standard by Federal Specifications and Standards, 08/12/1981
- Publisher: FED
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This specification covers the requirements for faced thermal insulation boards composed of rigid cellular polyurethane or polyisocyanurate faced with perlite insulation board on one side of the foam and asphalt/organic felt or ashpalt/glass fiber felt faced on the other side of the foam. This specification does not cover cryogenic applications. - Includes Validation Notice 1 (2/7/1991)
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