[Ord. No. 250 Art. VIII §1, 12-3-1951]
For the purpose of this Chapter, "dry cleaning" shall be considered the process of removing dirt, grease, paint
or other stains from wearing apparel, textiles, fabrics, rugs, etc.,
by the use of nonaqueous liquid solvents. "Dry dyeing" shall be considered the process of dyeing clothes or other fabrics
or textiles in a solution of dye colors and flammable liquids.
[Ord. No. 250 Art. VIII §2, 12-3-1951]
No person, firm or corporation shall engage in the business
of dry cleaning or dry dyeing unless he/she shall first obtain from
the City Clerk a permit setting forth the location, class of plant,
flash point of solvent and type of equipment to be used. All provisions
of this Chapter must be complied with and no change shall be made
in class of solvent nor in equipment unless permission for such change
shall first have been obtained from the City Clerk. No solvent shall
be used in any equipment other than class of solvent for which it
was designed.
[Ord. No. 250 Art. VIII §3, 12-3-1951]
A.
For
the purpose of this Chapter, dry cleaning and dry dyeing plants shall
be divided into the following four (4) classes:
1.
Class I plants shall be those employing a solvent
having a flash point below one hundred degrees Fahrenheit (100° F)
(closed cup test).
2.
Class II plants shall be those employing a solvent
having a flash point above one hundred degrees Fahrenheit (100° F)
(closed cup test), but not meeting requirements as further outlined
herein for Class III or Class IV plants.
3.
Class III plants shall be those employing a solvent
complying with the following specifications in dry cleaning systems
and drying cabinets or tumblers which have been specifically approved
by Underwriters' Laboratories, Inc., or a similarly recognized testing
laboratory as being suitable for use with such solvents.
a.
Flash point (closed cup test) not lower than one hundred thirty-eight
and two-tenths degrees Fahrenheit (138.2° F).
b.
Initial boiling point not lower than three hundred fifty-seven and
eight-tenths degrees Fahrenheit (357.8° F).
c.
Ignition temperature not lower than four hundred fifty-three and
two-tenths degrees Fahrenheit (453.2° F).
d.
Lower limit of explosive range not less than eight-tenths percent
(0.8%), by volume in air at an initial temperature of three hundred
two degrees Fahrenheit (302° F).
e.
Solvents shall not heat spontaneously.
4.
Class IV plants shall be those employing a solvent
classified by Underwriters' Laboratories, Inc., or a similarly recognized
testing laboratory as non-flammable or as non-flammable at ordinary
temperatures and only moderately flammable at higher temperatures.
[Ord. No. 250 Art. VIII §4, 12-3-1951]
Class I plants shall be located in one (1) story, flat roof,
fire-resistive buildings having window openings in at least two (2)
sides and with concrete or equivalent floors above grade and without
pits, wells, pockets or basements. Standard masonry walls, without
openings, may be located on property lines; otherwise building shall
not be closer than ten (10) feet to a property line. Wired glass,
metal frame skylights and wired glass, metal frame windows shall be
provided with all sash arranged to swing outward in case of an explosion.
Drying rooms, if under the same roof, shall be separated from the
dry cleaning room by a standard fire wall having openings protected
by standard fire doors. There shall be at least two (2) doors leading
to outside of building from all sections and doors shall swing in
the direction of exit travel. Class I plants shall not be used for
purposes other than dry cleaning and dyeing.
[Ord. No. 250 Art. VIII §5, 12-3-1951]
Class II plants shall be located only in one (1) story flat
roof buildings having masonry walls and with concrete or equivalent
floors above grade and without pits, wells, pockets or basements.
If located within the fire limits, roof shall be of fire-resistive
construction; if located outside of the fire limits, roof may be of
combustible construction provided that it is protected on the under
side with a ceiling of cement or gypsum plaster on metal lath or equivalent
construction. Dry cleaning or dyeing buildings shall not be closer
than ten (10) feet to a property line except that if the roof is of
fire-resistive construction, standard masonry walls without openings
may be located on the property line. Dry cleaning operations shall
not be carried on in the same building with other occupancies except
that incidental operations such as laundering, pressing, bronzing,
etc., may be in a communicating building if separated from the dry
cleaning room or drying room by standard fire doors approved for the
protection of openings in fire walls. There shall be at least two
(2) means of exit provided from the dry cleaning or drying room.
[Ord. No. 250 Art. VIII §6, 12-3-1951]
Class III plants may be located in buildings of any class of
construction. If in the same building with other tenants, the dry
cleaning or drying section shall be cut off from the remainder of
the building, vertically and horizontally, in an approved manner including
approved automatic or self-closing fire doors. Vertical cut-offs shall
be not less than floor assemblies of double seven-eights (⅞)
inch wood flooring protected underneath by cement or gypsum plaster
ceiling on metal lath; horizontal cut-offs shall be not less than
cement or gypsum plaster on metal lath on both sides of wood studs.
In no case shall Class III plants be located in a basement nor in
a building also used as a place of public assembly.
[Ord. No. 250 Art. VIII §7, 12-3-1951]
Class IV plants shall not be restricted as to type of building
nor as to location, except that such plants shall not be located in
basements nor in locations difficult to ventilate. Fumes and doors
shall be diffused in a manner that will not constitute a nuisance
or a menace to health.
[Ord. No. 250 Art. VIII §8, 12-3-1951]
Boilers for Class I and Class II plants shall not be located
in a dry cleaning or dyeing building. If located in a building adjoining
a dry cleaning or drying room, the boiler room shall be separated
from such room and a standard masonry fire wall without openings.
Boilers may be located in the same building with Class III plants,
but if adjoining dry cleaning areas they shall be cut off by standard
masonry fire walls without openings.
[Ord. No. 250 Art. VIII §9, 12-3-1951]
Mechanical ventilation is preferred for Class I and Class II
plants but in no event shall minimum requirements be considered satisfied
unless vent openings at floor lines, not less than thirty-six (36)
square inches in area and spaced not more than six (6) feet horizontally
are provided. For Class III plants satisfactory ventilation may consist
of fans, pipes and ducts properly arranged so to vent the drying tumblers
and drying cabinets to the outside air.
[Ord. No. 250 Art. VIII §10, 12-3-1951]
Above ground containers comprising purifiers, clarifiers, filter,
etc., in Class I and Class II plants shall not exceed three hundred
fifty (350) gallons individual capacity. Solvent storage tanks for
Class I plants shall be underground, covered with not less than two
(2) feet of earth. Solvent storage tanks for Class II plants may be
above ground if individual capacity of tanks does not exceed two hundred
seventy-five (275) gallons and the aggregate capacity of storage tanks
does not exceed five hundred fifty (550) gallons. Quantities of solvents
for Class II and Class III plants in excess of the above shall be
in buried tanks.
[Ord. No. 250 Art. VIII §11, 12-3-1951]
Adequate first aid fire appliances, suitable for fighting fires
in flammable liquids, shall be provided in all Class I, Class II and
Class III plants; at least one (1) extinguishing unit shall be provided
at each entrance of every room or area where flammable liquids are
used. It is desirable that dry cleaning rooms and drying rooms of
Class I plants be protected by an automatic sprinkler system or a
steam smothering system or a carbon dioxide flooding system; also,
that washers and drying tumblers in Class I and Class II plants be
protected by a steam smothering system or a carbon dioxide flooding
system; also, that drying cabinets in Class III plants be protected
by a steam smothering system or a carbon dioxide flooding system.
[Ord. No. 250 Art. VIII §12, 12-3-1951]
The handling of solvents from storage tanks through the various
machines and back to the settling and clear solvent tanks shall be
through a closed circuit of piping.
[Ord. No. 250 Art. VIII §13, 12-3-1951]
The cylinders and shells of all washing machines, drying tumblers,
walls of drying cabinets, outside shell of extractors and all above
ground containers shall be permanently and effectively grounded.
[Ord. No. 250 Art. VIII §14, 12-3-1951]
Electrical equipment in Class I plants shall conform with Article
500 of the National Electrical Code for Class I Hazardous locations
containing flammable vapors. For Class II plants all electrical equipment
within eight (8) feet of the floor in dry cleaning rooms or other
sections subject to flammable vapors shall comply with Article 500
of the National Electrical Code for Class I hazardous locations.
