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§4834-01 Storage of Flammable and Combustible Liquids in Pre-Existing Facilities

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   (a)   Scope. This section consolidates the New York City Fire Prevention Code and former Fire Department rules in effect on June 30, 2008, that are applicable to the design and installation of flammable and combustible liquid installations in pre-existing facilities.
   (b)   Definitions. The following terms shall, for purposes of this section and as used elsewhere in 3 RCNY Chapter 48, have the meanings shown herein:
      Apartment. An apartment, as defined in subdivision fifteen of section four of the multiple dwelling law. (Fire Prevention Code, former Administrative Code § 27-4002(1a))
      Bulk oil storage plant. A building, shed, enclosure or premises, or any portion thereof, in which petroleum or coal tar, or the liquid products thereof, are stored or kept for sale in large quantities. (Fire Prevention Code, former Administrative Code § 27-4002(31))
      Combustible mixture. A liquid or mixture having a closed-cup flashpoint at or above a temperature of one hundred degrees Fahrenheit, except that, for purposes of transportation, a combustible mixture shall mean a liquid or mixture defined as a combustible liquid by the United States Department of Transportation. (Fire Prevention Code, former Administrative Code § 27-4002(10))
      Diesel fuel oil. Any liquid, used as a motor fuel which does not emit a flammable vapor below a temperature of one hundred degrees Fahrenheit when tested in a Tagliabue open cup tester. (Fire Prevention Code, former Administrative Code § 27-4002(10b))
      Flammable mixture. A liquid or mixture having a closed-cup flashpoint at a temperature below one hundred degrees Fahrenheit, except that, for purposes of transportation, a flammable mixture shall mean a liquid or mixture defined as a flammable liquid by the United States Department of Transportation. (Fire Prevention Code, former Administrative Code § 27-4002(22))
      Essential oil. An oil used for flavoring or perfuming purposes. (Fire Prevention Code, former Administrative Code § 27-4002(13))
      Fire retarding material. Asbestos board in two layers, each one-fourth inch in thickness, the second layer breaking joints in all directions with the first, or plaster boards cocoa fibre filled, covered with lap jointed metal not less than 26 B. & S. gauge in thickness, and any other material that has successfully passed the one hour fire test prescribed by the industrial board of appeals of the state labor department on the twenty-ninth day of October, nineteen hundred fourteen. (Fire Prevention Code, former Administrative Code § 27-4002(16))
      Fuel oil. Any liquid mixture, substance or compound, derived from petroleum, which does not emit a flammable vapor below a temperature of one hundred twenty-five degrees Fahrenheit, when tested in a Tagliabue open cup tester. (Fire Prevention Code, former Administrative Code § 27-4002(18))
      Garage. A building, shed or enclosure, or any portion thereof, in which a motor vehicle other than one the fuel storage tank of which is empty, is stored, housed or kept. (Fire Prevention Code, former Administrative Code § 27-4002(19))
      Kerosene. Any liquid product of petroleum, commonly used for illuminating purposes, which does not emit a flammable vapor below a temperature of one hundred degrees Fahrenheit, when tested in a Tagliabue open cup tester. (Fire Prevention Code, former Administrative Code § 27-4002(23))
      Motor fuel. Gasoline, diesel fuel oil or other flammable or combustible liquids or mixtures used as fuel in the operation of motor vehicles, motorcycles, motor boats and aircraft. (Fire Prevention Code, former Administrative Code § 27-4002(26a))
      Oil and fat or fat and oil. Any oil, fat or grease, of animal, vegetable or mineral origin, except essential oils. (Fire Prevention Code, former Administrative Code § 27-4002(29))
      Vault. A covered excavation or chamber, below the street level, with masonry walls and roof, constructed outside the foundation walls of a building, and with but one entrance, fitted with a self-closing fireproof door. (Fire Prevention Code, former Administrative Code § 27-4002(42))
      Volatile flammable oil. Any oil or liquid that will generate a flammable vapor at a temperature below one hundred degrees Fahrenheit when tested in a Tagliabue open cup tester. (Fire Prevention Code, former Administrative Code § 27-4002(43))
   (c)   General Provisions. Pre-existing facilities with flammable and combustible liquid installations the design and installation of which would not be allowed or approved under the Fire Code, but which, pursuant to FC 102.3 and R102-01, may be continued with respect to such flammable and combustible liquid installations under the applicable laws, rules and regulations in effect prior to the Fire Code, shall continue to comply with the provisions of such laws, rules and regulations, including former Administrative Code §§ 27-4053, 27-4055, 27-4065, 27-4066, 27-4069, 27-4070, 27-4094, 27-4227, 27-4231 and 27-4265, and former Fire Department rules §§ 8-01, 8-02, 20-07, 21-05, 21-06, 21-17, 28-01 and 28-04, as applicable, until such time as such facilities may be required to comply with the Fire Code and the rules with respect to their design and installation.
   (d)   Flammable Liquid Manufacture, Storage and Use.
      (1)   Former Administrative Code § 27-4065.
         § 27-4065 Manufacture.
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         b.   Restrictions. No permit for the manufacture of flammable mixtures shall be issued for any building:
            1.   Which is situated within fifty feet of the nearest wall of any building occupied as a school, hospital, theatre or other place of public amusement or assembly;
            2.   Where the building does not comply with the requirements of the building code regulating high hazard occupancies for buildings erected after the sixth day of December, nineteen hundred sixty-eight; or where a building or building section erected prior thereto is not fully equipped with an approved automatic sprinkler system; or where the building is occupied as a multiple dwelling, dwelling, school, theatre or other place of public amusement or assembly;
            3.   Which is artificially lighted by any means other than electricity;
            4.   Where drugs, cigars, cigarettes or tobaccos are kept for sale;
            5.   Where dry goods or other materials of a highly flammable nature are manufactured, stored or sold;
            6.   Where matches, rosin, hemp, cotton or any explosives are stored [;as]; or sold.
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         e.   Drawing-off pipe. The drawing-off pipe shall be encased in and surrounded by either four inches of Portland cement concrete or eight inches of brick masonry up to the level of the floor on which the compartment containing the mixing tank is located.
         f.   Filling pipes. The filling pipe shall be at least two inches and not larger than four inches nominal inside diameter, and shall be laid at a descending grade to the tank, terminating within six inches of the bottom of the tank. The intake of a filling pipe shall be located outside of any building and not less than ten feet from any door, subway grating or basement opening, and in a heavy metal box, which shall be sunk flush with the sidewalk at the curb level, or at some other location offering equal facilities for the filling of the tank and fitted with a heavy metal cover, which shall be liquid tight and kept closed when not in use. The filling pipe shall be closed at the intake by a cock or valve fitted with a coupling for attaching to the tank truck, and with a liquid tight cap or plug to close the opening when not in use. The filling pipe shall be provided with a screen made of one thickness of 20-mesh brass wire gauze, placed immediately below the filling cock or valve. Where a storage system for flammable liquids and a storage system for diesel motor fuel oil and/or fuel oil are to be used on the same premises, the terminal of the diesel motor fuel oil and/or fuel oil fill pipe shall be provided with a left handed thread and the fill pipe fitting shall be of a different size than that required for the fill pipe to tanks containing flammable liquids. In lieu of the foregoing, fill boxes may be of a type for which a certificate of approval shall have been issued by the commissioner or previously approved by the board of standards and appeals, unless such approval is amended or repealed by the commissioner, and shall have cast in its cover an identifying name or symbol to differentiate between fuel oil for heating and diesel oil as motor fuel.
         g.   Lighting. It shall be unlawful to install any system of artificial lighting other than electric lighting in any premises used for the manufacture of flammable mixtures. Such lighting shall be installed in accordance with the requirements of the electrical code. All electric switches and plugs shall be placed at least four feet above the floor.
         h.   Mixing tank. The mixing tank shall be located in a separate compartment built upon suitable foundations, having the walls, floor and roof constructed of Portland cement at least six inches thick, or of brick masonry, at least two inches thick, the brick to be laid in and covered by Portland cement mortar. Each such tank shall be filled either by means of a pump or an approved pressure system, and the tank shall be kept closed except when the ingredients entering into the manufacture of the flammable mixture are being placed therein. Each compartment wherein a mixing tank is located shall be equipped with self-closing fireproof doors and windows.
         i.   Piping, generally. Each storage tank shall be provided with a filling pipe, a drawing-off pipe and a vent pipe; provided that tanks installed as part of a hydraulic storage system shall not be required to have a vent pipe. All pipes and fittings shall be of galvanized steel, designed to withstand a hydrostatic pressure test of at least one hundred pounds to the square inch. All screw joints shall be made with a piping compound of a type for which a certificate of approval shall have been issued by the commissioner or previously approved by the board of standards and appeals, unless such approval is amended or repealed by the commissioner. In lieu of galvanized steel fittings, galvanized malleable iron fittings, with one hundred and fifty p.s.i. rating, may be used on any system that is provided with a leak detection system satisfactory to the fire commissioner such as probe holes, leak detection cables or other devices installed around the perimeter of the tank installation, designed for monitoring and that will be subjected to a hydraulic pressure test with water or product at ten p.s.i. in the presence of a fire department representative, every ten years. Brass trimmed specialty valves and brass control valves may be used in underground service lines and portions of suction lines within pump housing.
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         m.   Tanks. [Each tank used for the storage of volatile flammable oil shall be:]
            1.   [Of] Each tank used for the storage of volatile flammable oil shall have a capacity not exceeding four thousand gallons [each] when equipped with a double complete shell or when embedded or encased in twelve inches of concrete to the level of the top of the tanks.[ and in no case shall storage] Storage on a premises, including all tanks, shall not be in excess of twenty thousand gallons. [, and tanks] Tanks shall be of a type acceptable to the commissioner and constructed of American tank or carbon steel of the open hearth process[, of]. Tanks designed to contain no more than five hundred fifty gallons shall be at least one-quarter of an inch in thickness.[ for tanks not exceeding five hundred fifty gallons and for tanks] Tanks designed to contain over five hundred fifty gallons shall be at least one quarter of an inch in thickness for shell and five-sixteenths of an inch in thickness for heads, all welded with flanged and dished heads, with two inch lap weld with no tank openings piercing seams and all tank openings shall be provided at the top.[; at] At the time of installation all storage tanks shall bear a permanently affixed plate, spot welded or equivalent, having the name of tank manufacturer, the thickness of metal and capacity of tank. In lieu of the foregoing tank specifications, other tank construction acceptable to the commissioner may be permitted consistent with public safety, and before being covered or used together with all piping shall be tested hydrostatically to a pressure of thirty pounds per square inch, except discharge lines under pressure shall be tested to one hundred pounds per square inch or one and one-half times the maximum working pressure, whichever is greater, for a period of thirty minutes by the installer,[ in the presence of and witnessed by a representative of the fire department,] and shall not show any leakage. Such testing shall be conducted in the presence of a representative of the department.
            2.   [Thoroughly] Each tank used for the storage of volatile flammable oil shall be thoroughly cleaned and coated on the outside with two coats of red lead and with hot tar, asphalt or other rust resisting material, except that tanks equipped with a double complete shell shall be protected against corrosion to the satisfaction of the department and have a leak-detecting device acceptable to the commissioner[, and]. Each tank shall be set on a solid foundation approved by the department of buildings and except for double shell tanks shall be embedded or encased to the level of the top of the tank in at least twelve inches of concrete, having a minimum compressive strength of twenty-five hundred pounds per square inch at twenty-eight days. [Tanks] Each tank shall be covered with a structurally supported reinforced concrete slab at least eight inches thick extending at least twelve inches beyond the horizontal outlines of the tanks and placed over a coverage of clean sand or clean earth fill, the slab and its supports to be of a design as approved by the department of buildings. Excavation for storage tanks shall be made with due care to avoid undermining of foundations of existing structures.
            3.   [So set] Each tank used for the storage of volatile flammable oil shall be set so that the top or highest point thereof shall be at least two feet below the level of the lowest cellar floor of any building within a radius of ten feet from the tank[, and no]. No tank used for the storage of volatile flammable oil shall be located under the sidewalk or beyond the building line.
            4.   It shall be unlawful to cover from sight any tank, forming part of the buried oil storage system, until after an inspection has been made by the department, and written approval has been given; which approval shall be given without charge provided all the regulations have been complied with.
            5.   [Provided] When a tank used for the storage of volatile flammable oil is located inside a building it shall be provided with a liquid level or depth indicating device[ when the tank is located inside a building]. Test wells will not be permitted in tanks located inside of buildings. Liquid level or depth indicating devices [,]installed after this section takes effect[,] shall be substantially constructed and designed to prevent the escape of liquid or vapor and shall be of a type for which a certificate of approval shall have been issued by the commissioner or previously approved by the board of standards and appeals, unless such approval is amended or repealed by the commissioner. Unused tank openings shall be permanently sealed at the tank to prevent removal of plugs or covers.
         n.   Vent pipe. In other than hydraulic systems each tank shall be provided with a separate vent pipe[; vent]. Vent pipes for tanks not exceeding five hundred fifty gallons shall be at least one inch in diameter for existing installations and at least one and one-half inches in diameter for new vent pipe installations[, and]. Vent pipes for tanks over five hundred fifty gallons shall be not less than two inches in diameter[ for tanks over five hundred fifty gallons, and]. Vent pipes shall run from the tank to the outer air at a position higher than the fill pipe opening[, and]. Vent pipes for tanks located outside of buildings and for vents affixed to a building wall at least ten feet for existing installations and at least fifteen feet for new installations above the adjacent ground level, and for tanks inside buildings at least ten feet above the roof of the building in which the plant or tank is located, and shall be at least ten feet from the nearest building opening, and well braced in position. Each vent pipe shall have a double[,] swing joint at the tank and a single swing joint at the vertical riser[ and when such]. When a vent pipe exceeds two inches in diameter it shall be capped with a double gooseneck, cowl, or hood, and shall be provided with either a screen made of two thicknesses of 20-mesh brass wire gauze, placed immediately below the gooseneck, cowl or hood or [provided with] a flame arrestor of a type approved by a nationally recognized laboratory. A vent pipe shall not be obstructed by devices that will reduce [their] its capacity and thus cause excessive back pressure.
         o.   Ventilating flue. Each compartment wherein a mixing tank is located shall be equipped with a ventilating flue, constructed of brick or concrete, lined with tile pipe at least eight inches square, inside measurement, and extending from the floor of the compartment at a point opposite the door, to at least six feet above the highest point of the roof, and at least ten feet from the nearest wall of any adjoining building. Such flue shall have an opening into the mixing compartment six inches square and three inches above the floor, and shall be equipped with a double gooseneck eight inches square, made of at least 18-gauge galvanized iron. All openings shall be covered with 20-mesh brass wire screens.
         p.   Fire prevention. It shall be unlawful to allow any stove, forge, torch or other device employing flame or fire, or any electric or other apparatus which is likely to produce an exposed spark, in any building used for the manufacture of flammable mixtures, unless it be placed in a room or compartment separated from the remainder of the building by a partition constructed of fire retarding material and provided with a self-closing fireproof door; provided, however, that electric motors may be of the fully enclosed type or provided with an approved type "A" (fire department specifications) motor enclosure. The terminal blocks also shall be protected. It shall be unlawful to locate any boiler or furnace in any such building, unless separated from the remainder of the building by an unpierced fireproof wall consisting of solid masonry or its equivalent, of at least eight inches in thickness; provided, however, that where the construction of such unpierced wall shall be impracticable, the commissioner may permit such openings in such wall as may be necessary, and prescribe such protection therefor as in his or her judgment the particular case shall require.
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         r.   Installation of pumps. The installation of pumps shall conform to paragraphs three and six of subdivision b of section 27-4081 of this chapter insofar as applicable.
      (2)   Former Administrative Code § 27-4066.
         § 27-4066 Requirements for below-grade storage in mercantile occupancies. A system of automatic sprinklers shall be provided in each basement, cellar or other location below grade, regardless of the floor area of such space, in any mercantile establishment in which the commissioner permits the storage of flammable mixtures, except that, where flammable mixtures are stored in such basement, cellar or other location below grade, in a room or other area that is segregated, vertically and horizontally, from surrounding spaces by a fire separation of not less than a two-hour fire-resistance rating, such system of automatic sprinklers shall be required only within such room or other area. Such system of automatic sprinklers shall conform to the requirements for automatic sprinklers for spaces classified in storage occupancy group B-1 pursuant to subdivision d of section 27-954 of the building code.
      (3)   Former Administrative Code § 27-4265.
         § 27-4265 Fire extinguishing appliances.
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         b.   Sprinkler systems in garment factories and factories using flammable oil for processing:
            1.   A one source automatic wet pipe sprinkler system shall be provided in every non-fireproof building in which there is a garment factory or a factory engaged in the processing of combustible fabrics with a flammable oil, and which exceeds three stories in height and in which more than fifty persons are employed above the street floor.
            2.   The provisions of subdivision a shall not apply to a factory which is incidental to the conduct of a retail business on the premises, provided not more than six persons are employed at any time in such incidental manufacturing.
            3.   For the purposes of this section, a flammable oil is one which emits a flammable vapor below one hundred twenty-five degrees Fahrenheit when tested in a Tagliabue open cup tester.
            4.   Garment factory shall include those factories engaged in making underwear, dresses, suits and coats.
            5.   The commissioner may accept an automatic dry pipe sprinkler system in place of an automatic wet pipe sprinkler system where low temperatures or other conditions would prevent the installation of a wet pipe system.
            6.   The sprinkler systems shall be provided in all parts of such buildings.
            7.   The provisions of this section shall apply to existing buildings and to buildings hereafter erected.
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   (e)   Combustible Liquid Manufacture and Storage.
      (1)   Former Administrative Code § 27-4069.
         § 27-4069 Manufacture.
         a.   Restriction. No such permit shall be issued for the manufacturing of combustible mixtures in any building within the restrictions of subdivision b of section 27-4065 of this chapter of the code.
      (2)   Former Administrative Code § 27-4070.
         § 27-4070 Requirements for below-grade storage in mercantile occupancies.
         A system of automatic sprinklers shall be provided in each basement, cellar or other location below grade, regardless of the floor area of such space, in any mercantile establishment in which the commissioner permits the storage of combustible mixtures, except that, where combustible mixtures are stored in such basement, cellar or other location below grade, in a room or other area that is segregated, vertically and horizontally, from surrounding spaces by a fire separation of not less than a two-hour fire-resistance rating, such system of automatic sprinklers shall be required only within such room or other area. Such system of automatic sprinklers shall conform to the requirements for automatic sprinklers for spaces classified in storage occupancy group B-1 pursuant to subdivision d of section 27-954 of the building code.
   (f)   Distilled Liquors and Alcohols.
      (1)   Former Administrative Code § 27-4227.
         § 27-4227 Restrictions.
         a.   No permit shall be issued for the manufacture, distillation, rectification, or storage of distilled liquor, spirits or alcohols, in quantities exceeding the amounts set forth in subdivision b of this section, in any building:
            1.   Which is situated within fifty feet of the nearest wall of any building occupied as a hospital, school, theatre or other place of public amusement or assembly;
            2.   Where the occupancy within the building in which the distilled liquor, spirits or alcohols are manufactured, distilled, rectified or stored does not comply with the requirements of the building code regulating high hazard occupancies for buildings erected after the sixth day of December, nineteen hundred sixty-eight; or where [;a]; such occupancy is located in a building [;or building section]; erected prior thereto and such occupancy is not fully equipped with an approved automatic sprinkler system.
         b.   The provisions of subdivision a of this section shall apply where the combined total amount of distilled liquor, spirits or alcohols being manufactured, distilled, rectified or stored exceeds:
            1.  5,000 gallons, if such distilled liquor, spirits or alcohols is kept stored in the manufacturer's original sealed containers, and is not dispensed or used on the premises.
            2.   3,000 gallons, if such distilled liquor, spirits or alcohols is dispensed or used on the premises.
   (g)   Petroleum, Shale Oils and the Liquid Products thereof.
      (1)   Former Administrative Code § 27-4055.
         § 27-4055 Limited Storage Permit.
         a.   Permits may be issued for the storage of petroleum and shale oil, and the liquid products thereof, and of coal tar, in a manner satisfactory to the commissioner, in buildings or premises other than storage plants, approved tank trucks or other vehicles, or approved buried tank systems, in quantities not to exceed the following:
            1.   Volatile flammable oils five hundred fifty gallons, except that such oils may be stored in larger quantities in fire department approved tank trucks or other vehicles, pending deliveries, in outdoor spaces, when permitted by the zoning resolution, when provided with portable fire fighting appliances as the commissioner may direct, or, when such trucks or other vehicles are equipped with battery cutoff switches, within fully sprinklered buildings complying with the building code and the zoning resolution of the city of New York.
            2.   Other oils that do not emit a flammable vapor at a temperature below one hundred degrees Fahrenheit, when tested in a Tagliabue open cup tester--one thousand one hundred gallons, except that such oils may be stored in larger quantities in fire department approved tank trucks or other vehicles, pending deliveries, in outdoor spaces or within buildings complying with the zoning resolution and the building code, when provided with the following minimum fire protection:
               i.   In outdoor spaces portable fire fighting appliances as the commissioner may direct.
               ii.   Within buildings portable fire fighting appliances as the commissioner may direct, battery cutoff switches, and sprinkler protection as required by the building code, except that for existing buildings lawfully occupied as a garage prior to the sixth of December, nineteen hundred sixty-eight, sprinkler protection shall be provided for storage of over forty-five thousand (45,000) gallons, and sprinkler protection, or smoke detection or thermostatic alarm system with connection to central office, shall be provided for storage of between twenty-two thousand five hundred (22,500) and forty-five thousand (45,000) gallons, all in accord with subdivision (a) of section 27-243, subdivisions (a) and (b) of section 27-455, subchapter seventeen of chapter one of this title and reference standard RS 17-3 of the code. For storage of less than twenty-two thousand five hundred (22,500) gallons--portable fire fighting appliances, as the commissioner may direct, shall be provided, in accord with subdivision (c) of section 27-455 of this title of the code. A permit shall be required for storage of product pending delivery except when such storage is on the site of, or in the immediate proximity of, a bulk oil storage plant.
         b.   Restrictions. No permit shall be issued for the storage or sale of volatile flammable oil in any building:
            1.   Where the building does not comply with the requirements of the building code regulating high hazard occupancies for buildings erected after the sixth day of December, nineteen hundred sixty-eight; or where a building or building section erected prior thereto is not fully equipped with an approved automatic sprinkler system; or where the building is occupied as a multiple dwelling, dwelling, school, theatre or other place of public amusement or assembly; except that group one public garages, as defined and classified in the building code shall be permitted. The commissioner may issue a permit for the storage and use of such volatile flammable oil in buildings occupied as schools, colleges, universities, hospitals and/or related facilities, when such oil is required for educational, instructional, clinical, diagnostic, research or testing purposes. Such use and storage shall be in such amounts and under such conditions as the commissioner shall prescribe;
            2.   Where explosives are stored or kept for sale or use;
            3.   Where dry goods or other material of a highly flammable nature are manufactured, stored or kept for sale;
            4.   Where the portion of the building occupied or used for the storage of volatile flammable oil is lighted by any means other than electricity;
            5.   Upon any floor above the ground floor of a building, except in an approved safety can in quantities of five gallons or less and for use only.
   (h)   Paints, Varnishes and Lacquers
      (1)   Former Administrative Code § 27-4094
         § 27-4094 Restrictions.
         a.   No permit for the manufacture, mixing or compounding of paints, varnishes or lacquers shall be issued for any premises:
            1.   Which are situated within fifty feet of the nearest wall of a building occupied as a school, theatre or other place of public amusement or assembly;
            2.   Where the building does not comply with the requirements of the building code regulating high hazard occupancies for buildings erected after the sixth day of December, nineteen hundred sixty-eight; or where a building or building section erected prior thereto is not fully equipped with an approved automatic sprinkler system; or where the building is occupied as a multiple dwelling, dwelling or factory, except where paint is the commodity manufactured in such factory;
            3.   Which are artificially lighted by any means other than electricity;
            4.   Where drugs, cigars, cigarettes or tobaccos are kept for sale;
            5.   Where dry goods or other highly flammable materials are manufactured, stored or kept for sale.
         b.   A system of automatic sprinklers shall be provided in each basement, cellar or other location below grade, regardless of the floor area of such space, in any mercantile establishment in which the commissioner permits the storage of flammable or combustible paints, varnishes, lacquers or other substances, mixtures or compounds commonly used for painting, varnishing, staining or similar purposes, except that, where such flammable or combustible substances, mixtures or compounds are stored in such basement, cellar or other location below grade, in a room or other area that is segregated, vertically and horizontally, from surrounding spaces by a fire separation of not less than a two-hour fire-resistance rating, such system of automatic sprinklers shall be required only within such room or other area. Such system of automatic sprinklers shall conform to the requirements for automatic sprinklers for spaces classified in storage occupancy group B-1 pursuant to subdivision d of section 27-954 of the building code.
   (i)   Oils and Fats.
      (1)   Former Administrative Code § 27-4231.
         § 27-4231 Restrictions.
         No permit shall be issued for the storage of oils, fats, greases or soap stock in any building or premises:
            1.   Which is situated within fifty feet of the nearest wall of any building occupied as a school, hospital, theatre, or any other place of public amusement or assembly;
            2.   Where the building does not comply with the requirements of the building code regulating high hazard occupancies for buildings erected after the sixth day of December, nineteen hundred sixty-eight; or where a building or building section erected prior thereto is not fully equipped with an approved automatic sprinkler system; or where the building is occupied as a multiple dwelling, school, theatre or other place of amusement or assembly;
            3.   Which is not equipped with a fire extinguishing system satisfactory to the commissioner;
            4.   Where matches or any explosives are stored or kept.
      (2)   Former Department Rule § 8-01.
         § 8-01 Fire Extinguishing Requirements for the Storage of Fats and Oils.
            (a)   Section 27-4231(3) of the Administrative Code of the City of New York shall be interpreted to mean an approved system of automatic sprinklers when: Fats and oils are stored in quantities exceeding the equivalent of 100 barrels. In addition, when more than 100 barrels of fats and oils are to be stored in any building occupied in part as a dwelling, that portion of the building occupied by the applicant must be separated from the rest of the building by fireproof walls and floors of at least a three hour rating.
      (3)   Former Department Rule § 8-02.
         § 8-02 Storage and Use of Cable Oils with a Flashpoint Over 300°F.
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         (b)   Tanks installed for the storage of cable oils exceeding a flashpoint of 300°F, shall be installed in conformity with the fuel oil rules of the Board of Standards and Appeals.
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   (j)   Bulk Plants and Terminals.
      (1)   Former Administrative Code § 27-4053.
         § 27-4053 Bulk oil storage plants.
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         b.   Bulk oil storage
            1.   Tank construction. All tanks, as to thickness and quality of material, dike wall enclosures, foundations, piping, valves and other related devices or equipment, comprising or forming part of a bulk oil storage plant, shall be designed and constructed in accordance with all applicable provisions of the building code.
            2.   Tank locations.
               A.   Adjoining properties. The distance between any part of an above ground storage tank and the nearest line of adjoining property which may be built upon, shall be in accordance with the following distance table: (For the purpose of determining nearest line of adjoining property which may be built upon, the width of any abutting public thoroughfare shall be included.)
Tank capacity
Minimum distance
  1,000 to 12,000 gallons
10 feet
12,001 to 30,000 gallons
20 feet
30,001 to 50,000 gallons
25 feet
Vertical cylindrical tanks (for storage of oil having a flash point below one hundred (100) degrees Fahrenheit).
Over 50,000 gallons:
Not less than the greater dimension of height or diameter of tank, except that such distance need not exceed one hundred twenty (120) feet, and in no case closer than twenty-five (25) feet.
No such tank shall exceed forty (40) feet in height.
Rectangular tanks (for storage of oil having a flash point below one hundred (100) degrees Fahrenheit).
Over 50,000 gallons:
Not less than the total of the length and the width of the tank divided by two except that such distance need not exceed one hundred twenty (120) feet, and in no case closer than twenty-five (25) feet.
No such tank shall exceed forty (40) feet in height.
Vertical cylindrical tanks (for storage of oil having a flash point of one hundred (100) degrees Fahrenheit or above).
Over 50,000 gallons:
Not less than one-half (1/2) the greater dimension of height or diameter of tank, except that such distance need not exceed one hundred twenty (120) feet, and in no case closer than twenty-five (25) feet.
No such tank shall exceed forty-eight (48) feet in height.
However, the commissioner may modify the height limitation to such extent as he or she may deem necessary in the interest of public safety. In no case shall such modification authorize the erection of vertical cylindrical tanks exceeding the height of sixty-four (64) feet.
Rectangular tanks (for storage of oil having a flash point of one hundred (100) degrees Fahrenheit or above).
Over 50,000 gallons:
Not less than the total of the length and the width of the tank divided by four (4), except that such distance need not exceed one hundred twenty (120) feet, and in no case closer than twenty-five (25) feet.

No such tank shall exceed forty (40) feet in height.
. . . . . . . . . .
            5.   Truck loading racks
. . . . . . . . . .
               B.   Each truck loading rack shall be equipped with a remote manually controlled water spray system. Spray nozzles shall be required over each tank truck loading position immediately below the roof beams of the loading rack and installed in a manner to adequately protect the entire loading rack area. At least one remote control valve shall be provided for the control of the water supply for each four loading positions. Piping and fitting shall be so installed that they can be thoroughly drained. An approved pump for such system shall receive water supply from an independent suction tank or direct connection to the city water main. The rated capacity of the pump shall be at least five hundred (500) gallons per minute at one hundred fifty (150) p.s.i.
. . . . . . . . . .
   (l)   Liquid Tank Storage Systems.
      (1)   Former Fire Department Rule § 21-06.
         § 21-06 Safeguards for Filling Above Ground Storage Tanks in Paint Stores.
         (a)   Flammable liquids which flash below 100°F shall be stored in sealed containers which shall not be opened on the premises, or in approved buried storage systems. When tanks cannot be buried, they may be vaulted in masonry at least 8" thick with a 24" access door. The vault is to be provided with mechanical ventilation to the outer air. Tanks are to be approved 275 or 550 gallon capacity. Electrical equipment is to be explosion-proof.
         (b)   Combustible liquids which flash over 100(degrees)F may be stored in Bowser or similar type above ground tanks which shall not exceed one hundred and ten (110) gallons in capacity.
         (c)   Fill lines shall terminate at curb in approved type fill boxes with means for locking.
         (d)   Vent lines shall terminate in the outer air with weatherproof hoods, screened, two (2) feet above the fill terminal and two (2) feet from any building opening. Vent lines shall be visible from fill line terminal.
         (e)   No other filling method shall be employed.
         (f)   Pumps shall be of approved type.
         (g)   A minimum of 64 square inches of fixed ventilation shall be provided for the storage and filling areas.
         (h)   The boiler room shall be separated from the tank location area by approved masonry.
         (i)   A fireproof self-closing door and 6" masonry sill to be provided at the opening of the boiler room.
         (j)   A catch basin shall be provided with a return line to the storage tank. A check valve to prevent escape of vapors shall be installed in the return line.
         (k)   The number of Bowser or similar type tanks shall not exceed five (5).
. . . . . . . . . .
      (2)   Former Fire Department Rule § 21-17.
         § 21-17 Installation of Storage Tanks and Piping for Liquids Having Flashpoints of 100 Degrees Fahrenheit or Higher Tagliabue Open Cup.
. . . . . . . . . .
(d)
(1) Construction of tanks. All storage tanks shall be designed in accordance with the following provisions:
               (i)   All storage tanks shall be built of steel plates or sheets, made by the open hearth or basic oxygen process. Such steel shall be free from physical imperfections, and shall be new, in good condition, and free from rust.
               (ii)   Tanks shall be welded, riveted and caulked, or riveted and welded. Flanges or other pipe connections may be welded. All caulking shall be placed with round nose tools and without damage to the plates. Filler of any kind between plates shall be prohibited.
               (iii)   Tanks to be buried shall be cleaned and then coated on the outside with two coats of red lead, or equivalent. They shall be further protected by a coating of hot tar, asphalt, or equivalent rust resistive material, applied at the work site. Tanks installed above ground shall be coated with one coat of red lead, or equivalent.
               (iv)   All buried storage tanks shall be constructed of at least 1/4-inch thick metal and shall be designed to withstand any external loads to which the tank may be subjected.
               (v)   At the time of installation all storage tanks shall bear a permanently fixed plate, spot welded or equivalent, bearing the name of the tank manufacturer, the gauge of the materials, and capacity of the tank. Shop fabricated storage tanks shall be installed without structural alteration.
               (vi)   All openings shall be through the top of the storage tank, except that storage tanks of 275-gallon capacity or less, located above ground but below the lowest story, may be provided with a 3/4-inch opening for gravity discharge and a l-inch opening in the bottom for cleaning and protection against corrosion.
               (vii)   Above ground tanks outside of buildings shall be electrically grounded in accordance with the requirements for equipment grounding of the Electrical Code of the City of New York.
            (2)   Construction requirements. Cylindrical tanks, of more than 275 gallon capacity, except vertical tanks above ground outside of buildings:
               (i)   The thickness of cylindrical tanks, including oval, elongated oval, or round tanks of more than 275-gallon capacity shall be subject to the following requirements:
                  (A)   Tanks 36 inches in diameter and less-at least 1/4-inch shell and 1/4-inch heads.
                  (B)   Tanks 37 to 72 inches in diameter-at least 1/4-inch shell and 5/16-inch heads.
                  (C)   Tanks 73 to 120 inches in diameter-at least 5/16-inch steel and 3/8-inch head.
                  (D)   Tanks over 120 inches in diameter shall be of at least 3/8-inch steel and shall be stiffened by angle rings or equivalent members so as to retain their cylindrical form.
               (ii)   Dished heads for such tanks shall have a curvature the radius of which is not greater than the diameter of the tank. Dished heads shall be formed with an adequate cylindrical extension rim to provide a welding or riveting surface. If flat heads are used, they shall be braced in the same manner as described for the bracing of flat sides of rectangular tanks.
               (iii)   Riveting in single lap seams shall not exceed a pitch as follows:
                  (A)   Shell 1/4-inch thick - 5/8-inch diameter rivets, 2 1/4-inch pitch.
                  (B)   Shell 5/16-inch thick - 5/8-inch diameter rivets, 2 3/8-inch pitch.
                  (C)   Shell 3/8-inch thick - 3/4-inch diameter rivets, 2 1/2-inch pitch.
            (3)   Rectangular tanks, of more than 275-gallon capacity
               (i)   Plates for rectangular tanks of more than 275-gallon capacity shall be at least 5/16-inch thick.
               (ii)   Corners may be made up by bending the plates or by using angles.
               (iii)   Minimum rivet diameter in seams shall be 5/8-inch and rivets shall be spaced not more than 2 1/4-inch center-to-center.
               (iv)   All flat surfaces of rectangular tanks shall be braced by structural members or rods.
               (v)   When structural members are used, the rivet pitch shall not exceed 6 inches.
               (vi)   All structural members shall be designed in accordance with the requirements of Subchapter 10 of Chapter 1 of Title 27 of the Administrative Code.
               (vii)   Connections between bracing members and the sides of the tank shall be designed so that the connections will not fail before the member will fail.
            (4)   All tanks except vertical tanks above ground 275 gallons or less capacity. All storage tanks of 275-gallon capacity or less that are not buried shall have a minimum thickness of shell and head plated of number 10 manufacturer's standard gauge steel plate. Storage tanks of 60-gallon capacity or less shall be similarly constructed but need not be thicker than No. 14 manufacturer's standard gauge.
            (5)   Vertical storage tanks over 1,000-gallon capacity located outside of building above ground
               (i)   Vertical tanks located outside of buildings above ground shall be built of steel plates of the quality required for cylindrical tanks.
               (ii)   The minimum thickness of roof plates shall be 1/8-inch. The thickness of shell plates shall be determined in accordance with the following formula:
 
t =
TE
PRF
                  Where:  t = thickness of shell plate in inches
                  Where:  P = head pressure at bottom of ring under consideration in p.s.i.
                  Where:  R = radius of shell, in inches
                  Where:  F = factor of safety (taken as 5)
                  Where:  T = tensile strength of plate, in p.s.i. as verified by mill test certificate
                  Where:  E = efficiency of vertical joint in pipe under consideration E shall in no case be taken greater than 1.00.
                  Roof plates shall have single lap-riveted or welded water-tight seams, and the roof shall be built to shed water. Bottom plates shall have single lap riveted or welded seams. Shell plate seams shall be designed to develop the full strength of the plate.
(e)
(1) Location of tanks. Inside of building, above ground on the lowest floor.
               (i)   Tank Capacity of 550 gallons or less. Storage tanks having a capacity of 550 gallons or less may be installed above ground on the lowest floor of a building, provided that such tanks are mounted on adequate noncombustible supports, with the tank anchored thereto. No more than 550 gallons of total storage capacity may be installed without protection provided in subparagraph (ii) or (iii) below.
               (ii)   Tank capacity more than 500 gallons but less than 1,100 gallons. Storage tanks having a capacity of more than 550 gallons but less than 1,100 gallons may be installed above ground on the lowest floor of a building, provided that all portions of such tanks above the floor are completely enclosed with noncombustible construction having at least a 2-hour fire resistance rating. Weep holes l-inch in diameter shall be provided at least every 3 feet along the bottom of the enclosure unless at least 15 inches of clearance, together with access door, is provided between the tank and the enclosure.
               (iii)   Tank capacity 1,100 gallons or more. Storage tanks having a capacity of 1,100 gallons or more may be installed above ground on the lowest floor of a building, provided that all portions of such tanks above the floor are completely enclosed with non-combustible construction having at least a 3-hour resistance rating. At least 15-inch clearance shall be provided over the tanks and on all sides between the tanks and the enclosure. A noncombustible access door, constructed so as to preserve the integrity of the fire resistive enclosure, shall be installed in the enclosure above the point where the capacity of the enclosure below the door sill would be equal to the capacity of the largest tank installed. When the longest inside dimension of the enclosure exceeds 35 feet, access doors shall be installed at intervals not exceeding 12 feet. Columns, pipes, or similar obstructions may project into the required 15 inches of space within the enclosure, provided that access door or doors are so arranged that all portions of the enclosure are accessible for servicing.
               (iv)   Maximum tank size. The capacity of individual storage tanks in no case shall exceed 20,000 gallons.
            (2)   Inside of buildings, below ground.
               (i)   Storage tanks having a capacity greater than 275 gallons may be buried inside of a building provided that the top of the tank is at least 2 feet below floor level. In lieu of 2 feet of earth over the tank, the tank may be covered by concrete flooring having the same thickness as the basement floor, but not less than 4 inches concrete meeting the requirements of Subchapter 10 of Chapter 1 of Title 27 of the Administrative Code and reinforced with 2-inch by 2-inch mesh of at least No. 20 U.S. Standard Gauge Steel Wire. Tanks shall be placed in firm soil and shall be surrounded by clean sand or well-tamped earth, free from ashes and other corrosive substances, and free from stones that will not pass through a l-inch mesh. When necessary to prevent floating, tanks shall be securely anchored.
               (ii)   No tank shall be buried within 3 feet of any foundation wall or footing.
            (3)   Outside of building, below ground.
               (i)   Storage tanks located outside of buildings and below ground, shall be buried with the top of the tank at least 2 feet below ground. Tanks shall be placed in firm soil and shall be surrounded by clean sand or well tamped earth, free from ashes or other corrosive substances, and free from stones that will not pass a l-inch mesh. When necessary to prevent floating, tanks shall be securely anchored.
               (ii)   No tank shall be buried within 3 feet of any foundation wall or footing.
            (4)   Outside building, above ground.
               (i)   Storage tanks of a capacity greater than 275 gallons located outside of buildings above ground shall be not less than one and one-quarter (1/4) tank diameters and in no case less than 10 feet from the line of adjoining property, the nearest building or adjacent tank. The minimum clearance between individual tanks located outside of buildings above ground and the line of adjoining property which may be built upon shall be fixed by the following formula:
                  M.C. = 10 + 4 G 275
                        5,000
                  Where:  M.C. = minimum clearance from nearest surface of tank to adjoining property in feet.
                  Where:  G = capacity of tank, in gallons.
                  The maximum allowable capacity of tanks for storage of liquids or solvents having a flashpoint of 100 degrees Fahrenheit or higher located outside of building above ground shall be 100,000 gallons.
               (ii)  Tanks shall be located so as not to obstruct or interfere with any means of egress.
               (iii)   Each storage tank shall be protected by an embankment or dike. Such protection shall have a capacity at least 1 1/2 times the capacity of the tank so surrounded and shall be at least 4 feet high, but in no case shall the protection be higher than 1/4 the height of the tank when the height of the tank exceeds 16 feet. Embankments or dikes shall be made of earth work with clay core, of masonry, or reinforced concrete or of steel. Earth work embankments shall be firmly and compactly built of good earth free from stones, vegetable matter, etc., and shall have a flat section of at least 3 feet at the top and slope of at least 1 1/2 to 2 feet on all sides. Concrete, masonry or steel dikes shall be designed so as to confine safely all of the oil in the tank so surrounded. Embankments or dikes shall be continuous and unpierced, and the outside toe shall be located at least 5 feet inside of the property line, and no less than 5 feet from a driveway or parking area.
            (5)   Tanks located along line of subways.
               (i)   No buried tank shall be placed within 20 feet of the outside line of a subway wall. Where an above ground tank within a building is located within the outer lines of the subway, or within 20 feet of the outside line of the subway wall, such tank shall be placed within a welded steel oil-tight pan of not less than number 18 manufacturer's standard gauge metal suitably reinforced and of capacity to contain the contents of the tank.
               (ii)   For the purpose of the foregoing requirement, a subway shall be deemed to include any subsurface railroad or rapid transit roadbed.
(f)
(1) Installation of piping and tubing.
               (i)   Exposed piping shall be protected against mechanical damage and shall be adequately supported with rigid metal fasteners or hangers. All pipes connected to buried tanks, except test well piping, shall be provided with double swing joints at the tank.
               (ii)   Only new wrought iron, steel, or brass pipe, or type K or heavier copper tubing shall be used. Metal tubing when used for conveying material shall be adequately protected.
               (iii)   Overflow pipes, where installed, shall not be smaller in size than the supply pipe.
               (iv)   Pipe shall be connected with standard fittings and tubing with fittings of listed or approved type all of the same material as the pipe, except that malleable iron fittings may be used with steel pipe. Cast iron fittings shall not be used. All threaded joints and connections shall be made tight with suitable pipe compound. Unions requiring gaskets or packing, right or left couplings and sweat fittings employing solder having a melting point of less than 1,000 F. shall not be used.
            (2)   Relief valves.
               (i)   Where a shut-off valve is installed in the discharge line from a material pump, a relief valve shall be installed in the discharge line between the pump and the first shut-off valve.
               (ii)   Relief valves shall be set to discharge at not more than 1 1/2 times the maximum working pressure of the system. The discharge from relief valves shall be returned to the storage tank or to the supply line. There shall be no shut-off valve in the line of relief.
            (3)   Vent pipes.
               (i)   A vent pipe of iron or steel, without trap, draining to the tank, shall be provided for each storage tank. The lower end of the vent pipe shall not extend more than 1 inch through the top of the storage tank. Cross-connection between a vent pipe and fill pipe is prohibited.
               (ii)   Where a battery of storage tanks designed to hold identical material is installed, vent pipes may be run into a main header.
               (iii)   Vent shall be at least 1 1/4 inch in diameter for storage tanks not exceeding 1,100 gallon capacity and at least 2 inches in diameter for storage tanks of 1,100 gallons or more.
               (iv)   Vent pipes shall be provided with an approved weatherproof hood having a free area of at least the pipe size area. Vent pipes shall terminate outside the building in a non-hazardous location, at least 2 feet from any building opening and not less than 2 feet nor more than 12 feet above the fill pipe terminal unless otherwise permitted by the Commissioner. If the vent pipe terminal is not visible from the fill pipe terminal location, a one-inch tell-tale line shall be connected to the tank and shall parallel the fill pipe and terminate at the fill terminal with an unthreaded end. Such tell-tale lines shall be provided with a check valve set to prevent flow of surface water to the storage tank.
            (4)   Fill pipes.
               (i)   Fill pipes shall terminate outside the buildings, with the fill pipe terminal located at or above grade, at least 2 feet from any building opening and 5 feet from any subway grating at or below the level of the pipe terminal. No fill pipe shall be less than 2 inches in diameter.
               (ii)   Each storage tank shall be provided with a separate fill pipe, except that where a battery of tanks is installed containing identical materials, a common fill and header pipe may be installed.
               (iii)   Where the top of the storage tank is above the fill pipe terminal, the fill pipe shall be connected to the top of the tank and provided with a shut-off valve and swing check valve both of which shall be located at the fill pipe terminal. However, the shut-off and check valves may be installed in an accessible location inside the building at or below the level of the fill pipe terminal.
               (iv)   All fill pipe terminals shall be of a type identical to that approved for fuel oil service, and shall be provided with lugs for embedding concrete. In lieu of lugs, a set screw or threads to fasten the terminal to the fill pipe may be used. The outer flange of the fill pipe terminal or the seal cap shall be permanently marked to identify contents. The fill pipe terminal shall be threaded or provided with other equivalent means to receive the seal cap. The seal cap shall be suitably slotted for receiving an opening wrench, and an oil proof gasket inserted in a groove in the fill pipe terminal shall be provided so as to make the seal cap leak-proof. A strainer shall not be required but, if used, shall be of at least 1/8-inch mesh. Where a storage system for volatile flammable oil and a storage system for liquid flashing at 100 degrees Fahrenheit or higher is to be used in the same premises, the terminal of liquid flashing 100 degrees Fahrenheit or higher storage system shall be provided with a left-headed thread and the fill pipe fitting shall be of a different size than that required for the fill pipes to the tanks containing the volatile flammable oil.
            (5)   Piping from transfer pump to manufacturing equipment above the lowest floor.
               (i)   The piping from a transfer pump to "manufacturing equipment" at levels above the lowest floor in buildings, the return piping, and vent piping shall comply with the applicable provisions of paragraphs (1), (3) and (4) of this subdivision (f) and shall be enclosed in a shaft constructed of 4 inch concrete or masonry having a 4 inch clearance from all pipe or pipe covering. Provisions shall be made for expansion in piping without the use of expansion joints.
               (ii)   Where it is necessary to make horizontal offsets in the supply piping and pipe shafts such piping shall be enclosed in a sleeve of other piping of at least number 10 manufacturer's standard gauge steel, two sizes larger and arranged to drain into the shaft. Horizontal piping offsets shall be further enclosed in construction having a 2-hour fire resistance rating.
               (iii)   A drain pipe shall be installed at the base of shafts enclosing the supply and overflow piping. The pipe shall lead to an open sight drain or to an open sump.
               (iv)   Pipe lines for manufacturing equipment above the level of the lowest floor shall be seamless steel pipe of a weight not less than ASA schedule 40 with welded connections.
               (v)   Pipe shafts shall not be penetrated by or contain other piping or ducts.
         (g)   Valves and devices to control the flow of materials.
            (1)   Approved leak detectors on discharge piping shall be provided for submerged or remote control pumps.
            (2)   A clearly identified remote control switch readily accessible, shall be provided on each floor to which material is pumped to shut-off the power to the pump motors.
            (3)   A visible means shall be provided for each discharge area to indicate when pump is operating.
            (4)   Pumps shall be of a type approved by Board of Standards and Appeals.
            (5)   Pressure in storage tanks for the purpose of discharging materials is prohibited.
         (h)   Material level indicating devices and test wells.
            (1)   All tanks located inside buildings shall be provided with a material level indicating device. Test wells shall be prohibited in tanks located inside of buildings. Unused tank openings shall be permanently sealed to prevent the removal of plugs or cover.
            (2)   Material level indicating devices shall be designed and constructed of substantial materials so that there can be no leakage of materials or vapor from the material.
            (3)   Test wells in storage tanks located outside of buildings shall be capped oil tight and kept closed when not in use.
         (i)   Tests. All piping and storage tanks for materials flashing at 100 degrees Fahrenheit or higher shall be tested hydrostatically in the presence of a Fire Department representative before work is closed in. The hydrostatic pressure shall be maintained until all joints and connections have been visually inspected, for leaks but in no case for less than one-half hour. The minimum pressure for testing tanks shall be at least 25 pounds per square inch. The piping shall be tested at 1 1/2 times maximum work pressure applicable to that part of the piping system but in no case less than 25 pounds per square inch. For storage systems for materials flashing above 300 degrees Fahrenheit contractor may submit a notarized affidavit attesting to testing of tank and piping as prescribed above, in lieu of the Fire Department witnessed test.
   (m)   Flammable and Combustible Liquid Storage.
      (1)   Former Fire Department Rule § 20-07.
         § 20-07 Storage and Sale of Acetone and/or Nail Polish Remover.
. . . . . . . . . .
         (b)   With regard to the storage and use of raw materials, such as acetone, vegetable and essential oils, the following requirements are applicable:
            (1)   For 55 gallons or less of acetone:
               (i)   Metal storage cabinet;
               (ii)   Cabinet shall be against an outside building wall and remote from possible ignition sources;
               (iii)   Cabinet to be provided with top and bottom ventilation to outer air.
            (2)   For quantities exceeding 55 gallons and up to 275 gallons:
               (i)   Storage room. Storage room shall be separated or cut off from remainder of premises by, at least, a 1 1/2 hour fire retardant partition. Floor and ceiling should be of non-combustible construction and designed with sufficient strength and customary safety factors and sustain maximum imposed loads. . . . . .
               (ii)   The storage room shall be provided with a suitable extinguishing system. This equipment may be of the foam or CO2 type.
               (iii)   Ample ventilation to outer air shall be provided in storage room.
               (iv)   All lights, switches and other electrical apparatus shall be of the explosion proof type.
               (v)   Heat, if required, shall be by indirect means, hot water or steam coils to be located either at ceiling or at walls above maximum drum height. No open flame devices shall be allowed in room or near communicating opening.
. . . . . . . . . .
               (xii)   All electrical equipment, in or near the workroom or laboratory room, where acetone is used, shall be of the explosion proof type. . . . . .
               (xiii)   All machinery shall be properly grounded.
. . . . . . . . . .
               (xvi)   Fixed ventilation (natural or mechanical) shall be provided in room where acetone is used. Note 1. When the quantity of acetone exceeds 275 gallons, a buried storage system shall be required.
. . . . . . . . . .
            (3)   Not more than one drum of acetone shall be allowed in a frame building.
. . . . . . . . . .
      (2)   Former Fire Department Rule § 21-05.
         § 21-05 Storage and Sale of Flammable and/or Volatile Flammable Oils in Retail Paint Stores. In buildings other than those with dwelling facilities where not more than fifteen (15) persons congregate, the quantity of such liquids, flammable mixtures and/or volatile flammable oils, shall be limited to 55 gallons above ground, or in an approved underground tank when the amount exceeds 55 gallons. In buildings used for a place of assembly or licensed place of public assembly, or in buildings where more than fifteen (15) persons congregate above the paint store occupancy, the quantity of such liquids shall be limited to five (5) gallons above ground in a safety can, or in an approved underground tank when the amount exceeds five (5) gallons.
. . . . . . . . . .
      (3)   Former Fire Department Rule § 28-01.
         § 28-01 Storage of Paints, Varnishes and Lacquers, and Similar Products in Multiple Dwellings.
. . . . . . . . . .
         (b)   No volatile flammable oils shall be stored.
         (c)   Paints, varnishes, enamels and all similar materials used for painting or coating, having a flashpoint, shall be stored in storage rooms of fireproof construction. No such storage shall be permitted in basement, cellar or subcellar areas of non-fireproof buildings, except in such areas which have heretofore been approved by the fire commissioner. Storage rooms in basement or cellar occupancies having a door leading to the outer air with a maximum distance of twenty-five (25) feet from the paint room door to such door to the outer air and easily accessible by ramp or stairway to grade, may be permitted in class I fireproof buildings.
         (d)   The storage room shall be provided with either natural ventilation or an independent duct leading to the outer air. The ventilation shall not terminate in an enclosed court nor within twenty (20) feet of any building opening. Motors of ventilating system shall be explosion proof. Automatic sprinklers shall be provided for the storage room. Sprinklers may be connected to the house supply.
         (e)   The door to the paint storage room shall be fireproof and self closing. A masonry or concrete sill at least six (6) inches above the floor shall be provided at the door opening. Door shall be kept securely locked when room is not in actual use.
. . . . . . . . . .
         (g)   No portable electrical appliances of any kind shall be used in the storage room.
         (h)   All globes shall be of the vaporproof type. The electric light switch shall be located outside of the room.
         (i)   The door to the room shall be marked "Paint Storage Room — No Smoking" in RED letters at least 4" high.
. . . . . . . . . .
         (o)   The total quantity of paint material shall not exceed two hundred (200) gallons in non-fireproof multiple dwellings, except where storage in a separate fireproof exterior building. In class I fireproof multiple dwellings, or complexes of contiguous multiple dwellings under the same ownership, two (2) gallons per apartment, but not more than two thousand (2,000) gallons storage may be permitted provided that, when storage exceeds two hundred (200) gallons, the automatic sprinkler system required for the storage room is extra hazard spacing and piping, with a fire department siamese connection, that the room is on an outside wall of the building, and that explosion venting is provided. Explosion venting provided shall be a minimum of ten (10) square feet when less than twenty (20) gallons of material having a flashpoint of under 100(degrees)F. Tag. o.c. is stored, and in accordance with NFPA Standard No. 68 (1954) when twenty (20) gallons or more of low flash material under 100 degrees F. Tag. o.c. flash) are stored. (These are in addition to all other requirements specified in these regulations).
         (p)   All thinning of such paints, etc. shall be prepared in said storage areas.
         (q)   All such paints, when not in actual use, shall be returned to said approved storage areas. All paint products shall be transported in closed containers.
         (r)   No spraying or dipping with such paints, etc. may be performed except as provided for in the rules of the Board of Standards and Appeals.
. . . . . . . . . .
      (4)   Former Fire Department Rule § 28-04.
         § 28-04 Storage and/or Use of Inks.
. . . . . . . . . .
         Printing inks and lithographic inks having a flashpoint below 100°F are to be within the purview of paints, varnishes, lacquers, as to permit requirements and restrictions. Apply paint spray rules of the Board of Standards and Appeals, 2 RCNY § 18-0l(f)(1)(i)-(iii) for storage facilities. Grounding and lighting shall be in accordance with the electrical code of the Bureau of Electrical Control.
. . . . . . . . . .
         Adequate means of either mechanical or natural ventilation shall be provided. No open flames unless printing machine is equipped with an exhaust hood and mechanical vent of at least one hundred (100) linear feet per minute is provided. . . . . . . . . . .

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