TY - RPRT TI - Boiling tests of non-asbestos-based thermal insulation used in air-conduit underground heat distribution systems AU - Kusuda, T AU - Ellis, W M PY - 1981 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 81-2324 DO - 10.6028/NBS.IR.81-2324 ER -