Section 27-406
§ 27-406 Application. This section shall apply to the construction,
alteration, and use of buildings or spaces for the spraying, dipping, or
drying of flammable paints, varnishes, and lacquers or other flammable
materials, mixtures, or compounds used for painting, varnishing,
staining, or similar purposes.
Section 27-408
§ 27-408 Location of processes. Spraying, dipping, or drying processes
shall be located in accordance with the requirements of 27-403 of
article two of this subchapter.
Section 27-409
§ 27-409 Construction. (a) Spray booths. Spray booths shall be
substantially constructed of noncombustible materials. Panels of
polished wired glass at least one-quarter inch thick, not exceeding
seven hundred twenty square inches in area and not more than forty-eight
inches in any linear dimension, may be used in the sides of spray
booths.
(1) Spray booths shall be provided with a mechanical ventilating
system meeting the requirements of section 27-410 of this article.
(2) Each spray booth having a frontal area larger than nine square
feet shall have a noncombustible deflector or curtain at least six
inches deep installed along the upper outer edge of the booth, over the
opening, and shall be protected with an automatic sprinkler system. The
interior of ducts shall be protected with sprinklers complying with the
construction requirements of subchapter seventeen of this chapter,
installed not more than twelve feet apart in horizontal ducts, and the
sprinklers shall be accessible through duct access doors.
(b) Dip tanks. Dip tanks, including their supports and drainboards
when provided, shall be of an approved type.
Section 27-410
§ 27-410 Ventilation. Spraying or dipping spaces shall be mechanically
ventilated during spraying or dipping operations so that the velocity of
air is at least one hundred linear feet per minute in the breathing zone
of the operator, conveying air toward the exhaust hood. The ventilating
system shall be of sufficient capacity to prevent the accumulation of
mist or vapors. Air shall be admitted to the spraying or dipping spaces
in an amount equal to the capacity of the fan or fans and in a manner
that prevents short-circuiting the path of air in the working zone of
such spaces. The exhaust fan control shall be interconnected with spray
guns so that they cannot be operated without the ventilation system
being in operation. Exhaust fans shall, in addition, be arranged to
operate independently of spray guns. Ventilation equipment shall be kept
in operation for sufficient length of time after spraying or dipping
operations to exhaust all vapors, fumes, or residues of spraying
materials from the spray, space dip space, or drying room.
(a) Ventilating ducts shall run directly to the outer air and be
protected with a hood against the weather. Ventilating ducts shall be
installed in accordance with the requirements of subchapter thirteen of
this chapter, but shall not terminate within ten feet horizontally of
any chimney outlet, or within twenty feet of any exit or any opening in
an adjoining wall.
(b) Make-up air shall be supplied from a point outside the spraying or
dipping space.
(c) The exhaust system from any spraying, dipping or drying space
shall not be connected to any other ventilating system or be discharged
into a chimney or flue used for the purpose of conveying gases of
combustion.
(d) Exhaust fan blades shall be constructed of nonferrous material.
Fan blades not coming in direct contact with spraying fumes need not
comply with this requirement.
(e) Adequate access doors or panels, tightly fitted, shall be provided
to permit inspection and cleaning of ducts.
Section 27-411
§ 27-411 Drying equipment. Ovens and furnaces operated in connection
with spray or dip finishing processes shall be of an approved type.
Section 27-412
§ 27-412 Sprinklers. Sprinkler protection shall be provided in all
spraying, dipping, or drying spaces using flammable materials in
accordance with the construction requirements of subchapter seventeen of
this chapter.
To the extent possible under law, Friends of Devin Balkind for Public Advocate has waived all copyright and related or neighboring rights to New York City Administrative Code. This work is published from: United States.
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