“Combustible material” means a material which will ignite when heated to a temperature at or below 1,200 degrees Fahrenheit.
“Fire resistance”, as applied to building materials and construction, means the ability to withstand fire or give protection from it for given periods under prescribed test conditions.
“Fire-resistive rating” means the degree of fire resistance of a fabricated unit or assembly of units of construction, determined by the standard fire test expressed in hours or fractions of an hour.
“Flame-spread rating” means the degree of flame resistance of materials used for interior finish and trim or for decorative purposes determined by the rate of flame spread in the standard tunnel test.
“Noncombustible material” means a material which will not ignite when heated to a temperature of 1,200 degrees Fahrenheit.
“Fire-retardant-treated wood” means lumber or plywood that has a Class 1 rating when tested in accordance with ASTM E-84, UL 723, or NFPA 255 for a period of 30 minutes and which, at no time during the period of the test, shows evidence of significant progressive combustion or experiences progress of the flame front more than 10 1/2 feet beyond the centerline line of burner. Each piece of fire-retardant-treated wood shall be identified at two-foot intervals by a label or a stamp of an approved agency acceptable to the building commissioner and the fire prevention bureau having an inspection service, and further by the marking of a continuous double line between the labels or stamps. Where fire-retardant-treated wood is to be subject to sustained high humidity or exposed to the weather, it shall be further identified to indicate there is no increase in listed fire hazard classification when subjected to “The Standard Rain Test” (ASTM D-2898-81).
(Prior code § 65-2; Amend Coun. J. 6-14-95, p. 2832; Amend Coun. J. 3-5-03, p. 104990, § 43; Amend Coun. J. 11-13-07, p. 14999, Art. II, § 1)