Sprinkler Piping Schedule : A listing of approved pipe sizes for various sizes of sprinkler systems, generally based on the number of heads being supplied; it is given in NFPA 13. See: Piping Schedule
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}