Section 27-425
§ 27-425 Application. This section shall apply to the construction,
alteration, and use of buildings or spaces for dry cleaning or dry
dyeing operations.
Section 27-426
§ 27-426 Classification. Dry cleaning and dry dyeing establishments
shall be classified as follows:
(a) High hazard. All establishments employing gasoline or other
solvents having a flash point below 100° F (tag. closed-cup).
(b) Moderate hazard. All establishments employing solvents having a
flash point between 100° F and 138.2° (tag. closed-cup).
(c) Low hazard. All establishments employing solvents with a flash
point higher than 138.2° F (tag. closed-cup).
Section 27-427
§ 27-427 Construction requirements. (a) High hazard. The construction
or installation of high hazard dry cleaning establishments shall be
prohibited.
(b) Moderate hazard. Moderate hazard dry cleaning establishments shall
meet all of the requirements of this code applicable to industrial
occupancy group D-1 buildings. The floor finish in moderate hazard dry
cleaning establishments shall be noncombustible and impervious.
(c) Low hazard. Low hazard dry cleaning establishments shall meet all
of the requirements of this code applicable to industrial occupancy
group D-2 buildings.
(d) Equipment. All dry cleaning machines and equipment shall be of an
approved type.
Section 27-428
§ 27-428 Ventilation. Mechanical ventilation systems in moderate
hazard plants shall be adequate to effect ten complete air changes per
hour. Low hazard dry cleaning establishments shall be provided with
mechanical ventilation adequate to effect four complete air changes per
hour. Ventilating systems shall be arranged in such manner as to
prevent solvent vapors from being admitted to the combustion area of any
device requiring an open flame. Sufficient make-up air shall be
introduced into all parts of the establishment to equal the air
exhausted by the dry cleaning units, dryers, and exhaust ventilating
system. Such air shall not contain any flammable vapors. Openings or
stacks discharging solvent vapor-air mixtures to the outdoors shall be
located in accordance with the provisions of subchapter thirteen of this
chapter.
Section 27-429
§ 27-429 Coin-operated units. In coin-operated establishments all dry
cleaning units shall be installed in such a manner that the working or
maintenance portion of the equipment shall be separated from the front
of the units by solid noncombustible partitions. Coin-operated units
shall be located within a diked area, all parts of which are impervious
to the solvent used in such units. The diked section shall be a four
inch curb above the floor. Provisions shall be made for the collection
of solvent spillage into tanks of capacity sufficient to contain all of
the solvent in the dry cleaning units served, and for return of the
solvent to the cleaning units through a closed pipe system. Access doors
to the space in back of the units shall be kept closed and locked.
Solvent storage tanks and other sources of danger shall be so situated
as to be inaccessible to the general public. In addition to the
mechanical ventilation required for low hazard dry cleaning
establishments, the following mechanical ventilation shall be provided:
(a) All dry cleaning units shall have facilities that create an inward
flow of one hundred cubic feet of air per minute into the unit when the
loading door is opened.
(b) Emergency ventilation of the space in back of the dry cleaning
units shall be provided so that in emergencies a minimum of one air
change per minute in the enclosed space will be provided. Emergency
ventilation equipment shall be on a circuit that is separate from the
general lighting and power circuits, and shall be taken off ahead of the
main switchboard, or shall be connected to the emergency lighting power
source when such source is provided.
(c) A scavenger duct system shall be provided in the space in back of
the units at each unit, and shall be designed to pick up vapor
surrounding the equipment near the floor and exhaust it at the rate of
one hundred cubic feet per minute. Scavenger ducts shall not be less
than five square inches in area.
Section 27-430
§ 27-430 Sprinklers. Automatic sprinkler protection complying with the
construction provisions of subchapter seventeen of this chapter as
required for occupancy group D-1, shall be provided for moderate hazard
dry cleaning establishments. In addition, in moderate hazard
establishments each dry cleaning unit shall be provided with automatic
extinguishing equipment, such as a carbon dioxide system, or a steam jet
of not less than three-quarters of an inch at a pressure of fifteen psi.
Section 27-431
§ 27-431 Separation of direct-fired dryers. In moderate hazard dry
cleaning establishments, direct-fired dryers shall not be used. In low
hazard dry cleaning establishments using nonflammable solvents only,
direct fired dryers may be used, but such dryers shall not be located
within twenty-five feet of a dry cleaning unit unless a noncombustible
partition (which may be glazed), equipped with self-closing doors, is
provided between the dry cleaning unit and the flame producing device.
This partition may provide either complete or partial separation,
provided that any partial separation shall be so arranged that the line
of air travel around the partition from the cleaning units to the dryer
is a minimum of twenty-five feet. Where a solid noncombustible partition
is constructed extending to the ceiling and all portions of the
enclosure are solid, except for self-closing access doors, and outdoor
air for combustion and drying is supplied, the separation may be reduced
to fifteen feet.
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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