Separate Fire Division 1 : A portion of a building cut off from all other portions of the building by fire walls, fire doors. See also: Fire Separation, Separation
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}