TY - GEN AU - Sparks, L L AU - Arvidson, J M C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1984-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.84-3011 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1984 TI - Thermal and mechanical properties of polyurethane foams and a survey of insulating concretes at cryogenic temperatures: ER -