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§'1521.30
<br />HH-C-536-1936
<br />QQ-B-lOlc-1949
<br />QQ-B-611a-1944
<br />QQ-C-501a-1950
<br />QQ-I-716-1948
<br />QQ-L-156-1946
<br />QQ-L-201-1950
<br />QQ-S-571b-1947
<br />SS-A-118a-1949
<br />SS-C-181b-1938
<br />SS-P-351-1942
<br />SS-P-361a-1942
<br />SS-P-371-1937
<br />SS-P-402-7/45
<br />SS-T-308-1948
<br />SS-W-51a-1937
<br />TT-P-21-1950
<br />TT-W-571c-1950
<br />UU-P-147-1948
<br />UU-W-lOla-1935
<br />WW-P-325-1944
<br />WW-P-351-10/30
<br />WW-P-356-1936
<br />WW-P-401-1945
<br />WW-P-406-1945
<br />WW-P-421-1940
<br />WW-P-441a-1943
<br />WW-P-460-1945
<br />WW-P-471-1946
<br />WW-P-491a-1946
<br />WW-P-501b-1945
<br />WW-P-521b-1945
<br />WW-P-541a-1947
<br />WW-P-542a-1950
<br />WW-T-791-1933
<br />WW-T-797-1933
<br />WW-T-799a-1946
<br />GGG-P-351a-44
<br />LLL-F-311-1951
<br />LLL-F-321b-12/42
<br />DWELLING HOUSE CODE 34
<br />Plumbing-Fixture-Setting Compound.
<br />Metal Base for Plaster and Stucco Construction.
<br />Commercial Brass Bars, Plates, Rods, Shapes, Sheets and Strips.
<br />Copper; Bars, Plates, Rods, Shapes, Sheets and Strips.
<br />Sheet Iron and Steel; Zinc-Coated (galvanized).
<br />Calking Lead.
<br />Sheet Lead.
<br />Solder; soft (tin, tin-lead, and lead-silver).
<br />Prefabricated Acoustical Units.
<br />Masonry Cement.
<br />Cement-Asbestos Pipe.
<br />Clay Sewer Pipe.
<br />Concrete Non-Pressure, Non-Reinforced and Reinforced Pipe.
<br />Gypsum Plaster.
<br />Ceramic Tile; Floor, Wall, and Trimmers.
<br />Gypsum Wallboard.
<br />Paint; Cement-Water, Powder, White and Tint (for interior and
<br />exterior use}.
<br />Wood Preservatives; Recommended Treating Practice.
<br />Building Paper; Waterproofed.
<br />Composition Wallboard.
<br />Lead Pipe, Bends and Traps for Plumbing and Water Distribution.
<br />Seamless Brass Pipe; Iron-Pipe-Size, Standard and Extra-Strong.
<br />Cast Iron Pipe; Drainage, Vent and Waste (threaded) .
<br />Cast Iron Soil Pipe and Pipe-Fittings.
<br />Steel and Ferrous-Alloy Pipe for Ordinary Uses (iron-pipe size).
<br />Cast Iron Water Pipe (bell and spigot and bolted-joint).
<br />Wrought-Iron Pipe; Welded, Black and Zinc Coated.
<br />Bronze (screwed} Pipe-Fittings,
<br />Bronze and Ferrous (screwed) Pipe-Fittings (bushings, plugs, and
<br />locknuts) .
<br />Cast-Iron Pipe-Fittings; Drainage.
<br />Cast-Iron Pipe-Fittings (screwed) .
<br />Malleable-Iron Pipe Fittings (screwed}.
<br />Plumbing Fixtures; (for) Land Use.
<br />Plumbing Fixtures; (for) Land Use (formed-metal plumbing fix-
<br />tures).
<br />Seamless Brass Tubing.
<br />Seamless Copper Tubing (for general use with I.P.S. flanged fit-
<br />tings) .
<br />Seamless Copper Tubing (for use with soldered or flared fittings).
<br />Pipe-Threads; Taper (American-National) .
<br />Fiber-board; hard-pressed, structural.
<br />Fiber-board; Insulating.
<br />1521.30 Forest Products Laboratory, Department of Agriculture.
<br />R1220-1946 Designing for Strength of Flat Panels with Stressed Coverings.
<br />R1257-1940 Fire-Resistance Tests of Plywood-Covered Wall Panels.
<br />R1630-1946 Approximate Methods of Calculating the Strength of Plywood.
<br />1521.31 National Bureau of Standards, Department of Commerce.
<br />BMS 71 Fire Tests of Wood and Metal-Framed Partitions.
<br />BMS 92 Fire-Resistant Classifications of Building Constructions.
<br />BMS103 Measurement of Heat Losses from Slab Floors.
<br />TRBM-44 Fire-Resistance and Sound Insulation Ratings for Walls, Partitions
<br />and Floors.
<br />1521.32 Standards of the Vermiculite Institute.
<br />Nov. 1951 Standard Specifications for Vermiculite Plastering and for Vermi-
<br />culite Acoustical Plastic.
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<br />91
<br />Heating Appliances and Systems
<br />§ 1591.31
<br />ing. Valves shall be set to relieve at a pres-
<br />sure at or below the maximum allowable
<br />working pressure of the boiler and so ar-
<br />ranged that they cannot be reset to relieve
<br />at a higher pressure than the maximum al-
<br />lowable working pressure of the boiler.
<br />1591.28 Safety pilots.
<br />Every automatically controlled liquid- or
<br />gas-fuel-fired heating appliance shall be pro-
<br />vided with an automatic control which will
<br />automatically stop the flow of all fuel other
<br />than that required for the means of ignition
<br />if the means of ignition fails to operate or
<br />fails to ignite the fuel or if, in the case of
<br />oil-fired equipment only, the main burners
<br />fail to light in the normal manner when
<br />fuel flows to them. The stoppage of fuel flow
<br />by the control shall not require electrical
<br />energy for operation.
<br />1591.29 Temperature limit controls.
<br />Temperature limit controls shall be of a
<br />type which will operate automatically to re-
<br />duce heat input even though electric energy
<br />becomes unavailable. Temperature limit
<br />controls listed by the Underwriters' Labora-
<br />tories, Inc,, or the American Gas Associa-
<br />tion or tested and approved by other ac-
<br />creditedtesting laboratory, may be approved
<br />by the Building Official without additional
<br />tests.
<br />1591.30 Mounting of floor-supported heat-
<br />ing appliances.
<br />(a) Scope. This section shall apply to
<br />floor-mounted heating and cooking stoves
<br />and heating furnaces and boilers used to heat
<br />buildings or other structures or parts there-
<br />of, including ranges using solid or liquid
<br />fuel, laundry stoves, space heaters, warm
<br />air furnaces, hot water boilers, steam boilers
<br />operating at not more than 15 psi, and floor-
<br />mounted direct-fired unit heaters.
<br />(b) Masonry or fireproof base, Except as
<br />provided in this Section for special types and
<br />for special mounting arrangements, heating
<br />appliances shall be mounted on concrete or
<br />masonry bases or floors not less than 3 inches
<br />thick supported on the ground, or they shall
<br />be mounted on floors of fire-proof construc-
<br />tion with noncombustible flooring or surface
<br />finish, in all cases extending not less than 6
<br />inches beyond such appliances on all sides
<br />when gas or oil fired and not less than 12
<br />inches on all sides when fired with solid fuel,
<br />and not less than 18 inches on the side or
<br />front where ashes are removed.
<br />(c) Protection o f combustible bases: Heat-
<br />ing furnaces and boilers installed on wood
<br />foisted floors or on other combustible con-
<br />struction shall have protective bases of sheet
<br />metal or asbestos-cement board. Protective
<br />bases shall extend beyond appliances for the
<br />distances specified in subsection (b) of this
<br />Section. For all coal-fired equipment and
<br />for all other equipment not protected by a
<br />wet base or which does not have a combus-
<br />tion chamber at least 12 inches above the
<br />floor, a protective base shall be overlaid with
<br />hollow masonry not less than 4 inches thick
<br />arranged for free air circulation through it.
<br />(d) Appliances burning liquid or solid
<br />fuel, Space heaters, stoves and ranges burn-
<br />ing liquid or solid fuel, the lower surface of
<br />which is a portion of the firebox, shall be set
<br />as provided in subsection (b) of this Section,
<br />or on hollow masonry bases as specified in
<br />subsection (c) of this Section for heating
<br />furnaces and boilers; provided that when
<br />such appliances have legs giving an open air
<br />space of not less than 5 inches below the
<br />bottom of the appliance, they may be set on
<br />sheet metal underlaid with not less than ~/4
<br />inch of asbestos or other equivalent approved
<br />noncombustible material; and, provided fur-
<br />ther, that where such appliances have ash
<br />boxes under the entire firebox and are set on
<br />legs giving an open air space of not less than
<br />5 inches below the bottom of the appliance,
<br />they may be set on sheet metal.
<br />(e) Ash removal. Where ashes are re-
<br />moved from a heating appliance, the mini-
<br />mum protection for a combustible floor shall
<br />be ~/4 inch cement-asbestos board covered
<br />with sheet metal, or equivalent.
<br />(f) Other floor supported heating appli-
<br />ances. Floor supported heating appliances
<br />of a type not hereinbefore described may be
<br />approved by the Board of Building Code
<br />Appeals for mounting on unprotected or pro-
<br />tected combustible construction, or on non-
<br />combustible construction extending lesser
<br />distances at the sides and front of the heat-
<br />ing device than those specified in this Sec-
<br />tion. Heating appliances which have been
<br />listed for mounting on combustible floor
<br />construction by the Underwriters' Labora-
<br />tories, Inc, or the American Gas Association,
<br />or tested and approved far mounting on com-
<br />bustible floor construction by other ac-
<br />creditedtesting laboratory, maybe approved
<br />by the Building ,Official for mounting on
<br />combustible floor construction without ad-
<br />ditional tests, unless and until otherwise
<br />ordered by the Board of Building Code Ap-
<br />peals.
<br />1591.31 Mounting of floor-suspended heat-
<br />ing appliances.
<br />Floor furnaces suspended from the floor of
<br />the space being heated, with means for ob-
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