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Nitromethane. Outside drum storage areas, if not equipped with a deluge-type automatic sprinkler system, shall be located in the following minimum distances from any building, combustible storage in the open, flammable liquid storage, lot line or public way:
Weight (Pounds) | Distance (Feet) |
2,000 | 100 |
2,001 – 10,000 | 200 |
10,001 – 20,000 | 300 |
20,001 – 40,000 | 400 |
40,001 – 80,000 | 500 |
In no case shall a safety clearance of less than 500 feet be provided to any lot line of any plot of ground on which is situated a school, institutional, assembly or open air assembly building.
It shall be permissible to store nitromethane in underground tanks meeting the requirements of Section 15-24-280 or in aboveground tanks meeting the requirements of Section 15-24-170 and barricaded in accordance with the requirements of Section 15-20-140. However, in no case shall a clearance of less than 500 feet be provided to any lot line of any plot of ground on which is situated a school, institutional, assembly or open air assembly building.
(Prior code § 92-20)
ARTICLE V. ASPHALT, TAR, PITCH, RESIN AND PARAFFIN (15-28-260 et seq.)
Every asphalt, tar, pitch, resin or paraffin heating room, shall be provided with one or more window, skylights or other ventilating opening facing a public way, private alley, yard or other open space not less than 15 feet wide, with closures arranged to open for natural ventilation and having a combined area of not less than five percent of the total wall area of the room. The required combined area of openings which are arranged to open for ventilation shall be provided with sashes or dampers, or other closures, which shall be hung, overbalanced and held in place in such manner that an explosion or fire within the room will cause such sash, damper or closure to open for its full area; provided, however, that in lieu of such requirements it shall be permissible to provide a vent flue or flues extending directly to the outside air, which shall be used solely for the purposes of ventilating such room, which shall have a combined area of not less than five percent of the total wall area of the room, with an enclosure of the same fire-resistive value as is required for the enclosures of the room, and equipped with a normally closed noncombustible trap door arranged to open automatically in case of explosion or fire within the room. No such window, skylight, ventilating opening or vent flue required by this section shall be nearer than four feet, six inches to any other building or structure on the same premises or to any interior lot line.
(Prior code § 92-21)
It shall be unlawful to boil or heat pitch, asphalt, tar, resin, turpentine or paraffin where direct heat is used, unless in or on a fireproof building, or in an open space at least 15 feet distant from any building. This section shall not apply to portable kettles used for roofing, waterproofing and street paving.
(Prior code § 92-22)
Every room hereafter designed, erected, altered or converted for the purpose of heating asphalt, tar, pitch or resin by means of direct heat shall have an enclosure of not less than two-hour fire-resistive construction. Every doorway in any such room shall have a sill of six inches in height. Every inside doorway connecting any such room with another such room shall be provided with a 1-hour-rated fire door.
(Prior code § 92-23; Amend Coun. J. 10-7-20, p. 21791, Art. VI, § 75)
ARTICLE VI. AMMONIUM NITRATE (15-28-300 et seq.)
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