TY - RPRT TI - Methods to calculate the response time of heat and smoke detectors installed below large unobstructed ceilings AU - Evans, David D AU - Stroup, David W PY - 1985 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 85-3167 DO - 10.6028/NBS.IR.85-3167 ER -