(a) General. Every fume or flammable compressed gas room in a building of Type IA, IB, or IIA construction shall have an enclosure of two-hour fire-resistive construction, except as otherwise provided under this section. Every such room in a building of other than Type IA, IB, or IIA construction shall be enclosed by not less than one-hour fire-resistive construction; provided, however, that the requirements of subsections (b) and (c) of this section shall prevail where inconsistent with this subsection.
(b) Water-Purifying Equipment. No corrosive, explosive, flammable, irritant, poisonous, toxic or other noxious gas in a quantity exceeding ten pounds, whether in a container, cylinder, piping or other water-purifying equipment, shall be permitted in any assembly unit. All containers, cylinders, piping or other equipment containing more than ten pounds of such gases named in this section in any other building, shall be located within a room or space having a four-hour fire-resistive enclosure. Any such room shall have no opening except to an open court, private alley, public way or other open space not less than 100 feet in area. Nothing in the provisions of this section shall be construed as prohibiting the location of such equipment in the same room with a furnace, boiler or other heat-producing unit or incinerator, if such room is made to comply with the provisions of this section.
(c) Cooling and Refrigerating Equipment. Any room or space used for cooling or refrigerating equipment shall conform to the requirements of Title 14M for refrigerating systems.
(Coun. J. 12-9-92, p. 25465; Amend Coun. J. 2-7-96, p. 15616; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 53)