For the purposes of this chapter, the following definitions shall apply:
(a) “ASTM” means the American Society for Testing and Materials.
(b) “Combustion device” means any furnace, incinerator, refuse-burning equipment, boiler, apparatus, device, mechanism, stack, chimney or structure used for the burning of fuel or other combustible material, or for the emission of products of combustion, or used in connection with processes which generate heat and may emit products of combustion, and includes process furnaces and stills.
(c) “Dust” means gas-borne particles larger than one micron in mean diameter, and includes fly ash.
(d) “Dust-separating equipment” means any device for separating dust from the gas medium in which it is carried.
(e) “Fly ash.” See “Dust.”
(f) “Fumes” means gases or vapors that are of such character as to create an unclean, destructive, offensive or unhealthful condition.
(g) “Grate” means the surface on which fuel is supported and burned, and through which air for combustion is passed.
(h) “Heating or low-pressure boilers” means all boilers carrying fifteen pounds or less steam pressure.
(i) “Incinerator” means a device intended or used for the destruction of garbage or other combustible refuse by burning.
(j) “Internal-combustion engine” means an engine in which combustion or a gaseous, liquid or pulverized solid fuel takes place within one or more cylinders.
(k) “Mechanically-fired apparatus” means a combustion device in which fuel is introduced into the combustion chamber by power-driven mechanical equipment.
(l) “Open fire” means a fire from which the products of combustion are emitted directly into the open air without passing through a stack or chimney.
(m) “Power boilers” means all boilers carrying pressure greater than fifteen pounds per square inch.
(n) “Process furnaces and stills” means furnaces, other than boiler furnaces or warm-air heating furnaces, used in a manufacturing process.
(o) “Ringelmann Smoke Chart” means the Ringelmann Chart with instructions for use as published by the U.S. Bureau of Mines, Circular 7718, dated August, 1955.
(p) “Smokeless coal” means coal conforming to the limitations specified by the American Society for Testing and Materials for low volatile bituminous coal on a mineral matter free basis (ASTM Spec. No. D-388-38T) containing, namely, seventy-eight percent or more but less than eighty-six percent of fixed carbon, and twenty-two percent or less but more than fourteen percent of volatile matter, both on a dry basis.
(q) “Soot” means agglomerated particles consisting mainly of carbonaceous material.
(r) “Stack or chimney” means a flue, conduit or opening arranged to conduct products of combustion to the open air.
(s) “Volatile” means the gaseous constituents of solid fuels as determined by the procedure defined in ASTM Spec. No. D-121-30.
(Ord. 10267. Passed 3-15-54.)