40 CFR 63.321 - Definitions.
Ancillary equipment means the equipment used with a dry cleaning machine in a dry cleaning system including, but not limited to, emission control devices, pumps, filters, muck cookers, stills, solvent tanks, solvent containers, water separators, exhaust dampers, diverter valves, interconnecting piping, hoses, and ducts.
Articles mean clothing, garments, textiles, fabrics, leather goods, and the like, that are dry cleaned.
Biweekly means any 14-day period of time.
Carbon adsorber means a bed of activated carbon into which an air-perchloroethylene gas-vapor stream is routed and which adsorbs the perchloroethylene on the carbon.
Coin-operated dry cleaning machine means a dry cleaning machine that is operated by the customer (that is, the customer places articles into the machine, turns the machine on, and removes articles from the machine).
Colorimetric detector tube means a glass tube (sealed prior to use), containing material impregnated with a chemical that is sensitive to perchloroethylene and is designed to measure the concentration of perchloroethylene in air.
Desorption means regeneration of a carbon adsorber by removal of the perchloroethylene adsorbed on the carbon.
Dry cleaning means the process of cleaning articles using perchloroethylene.
Dry cleaning facility means an establishment with one or more dry cleaning systems.
Dry-to-dry machine means a one-machine dry cleaning operation in which washing and drying are performed in the same machine.
Exhaust damper means a flow control device that prevents the air-perchloroethylene gas-vapor stream from exiting the dry cleaning machine into a carbon adsorber before room air is drawn into the dry cleaning machine.
Filter means a porous device through which PCE is passed to remove contaminants in suspension. Examples include, but are not limited to, lint filter, button trap, cartridge filter, tubular filter, regenerative filter, prefilter, polishing filter, and spin disc filter.
Halogenated hydrocarbon detector means a portable device capable of detecting vapor concentrations of PCE of 25 parts per million by volume and indicating a concentration of 25 parts per million by volume or greater by emitting an audible or visual signal that varies as the concentration changes.
Heating coil means the device used to heat the air stream circulated from the dry cleaning machine drum, after perchloroethylene has been condensed from the air stream and before the stream reenters the dry cleaning machine drum.
Muck cooker means a device for heating perchloroethylene-laden waste material to volatilize and recover perchloroethylene.
Perceptible leaks mean any perchloroethylene vapor or liquid leaks that are obvious from:
(1) The odor of perchloroethylene;
(2) Visual observation, such as pools or droplets of liquid; or
(3) The detection of gas flow by passing the fingers over the surface of equipment.
Perchloroethylene consumption means the total volume of perchloroethylene purchased based upon purchase receipts or other reliable measures.
Reconstruction, for purposes of this subpart, means replacement of a washer, dryer, or reclaimer; or replacement of any components of a dry cleaning system to such an extent that the fixed capital cost of the new components exceeds 50 percent of the fixed capital cost that would be required to construct a comparable new source.
Refrigerated condenser means a vapor recovery system into which an air-perchloroethylene gas-vapor stream is routed and the perchloroethylene is condensed by cooling the gas-vapor stream.
Refrigerated condenser coil means the coil containing the chilled liquid used to cool and condense the perchloroethylene.
Residence means any dwelling or housing in which people reside excluding short-term housing that is occupied by the same person for a period of less than 180 days (such as a hotel room).
Responsible official means one of the following:
(1) For a corporation: A president, secretary, treasurer, or
(2) For a partnership: A general partner;
(3) For a sole proprietorship: The owner; or
(4) For a municipality, State, Federal, or other public agency: Either a principal executive officer or ranking official.
Room enclosure means a stationary structure that encloses a transfer machine system, and is vented to a carbon adsorber or an equivalent control device during operation of the transfer machine system.
Source, for purposes of this subpart, means each dry cleaning system.
Still means any device used to volatilize and recover perchloroethylene from contaminated perchloroethylene.
Temperature sensor means a thermometer or thermocouple used to measure temperature.
Transfer machine system means a multiple-machine dry cleaning operation in which washing and drying are performed in different machines. Examples include, but are not limited to:
(1) A washer and dryer(s);
(2) A washer and reclaimer(s); or
(3) A dry-to-dry machine and reclaimer(s).
Vapor barrier enclosure means a room that encloses a dry cleaning system and is constructed of vapor barrier material that is impermeable to perchloroethylene. The enclosure shall be equipped with a ventilation system that exhausts outside the building and is completely separate from the ventilation system for any other area of the building. The exhaust system shall be designed and operated to maintain negative pressure and a ventilation rate of at least one air change per five minutes. The vapor barrier enclosure shall be constructed of glass, plexiglass, polyvinyl chloride, PVC sheet 22 mil thick (0.022 in.), sheet metal, metal foil face composite board, or other materials that are impermeable to perchloroethylene vapor. The enclosure shall be constructed so that all joints and seams are sealed except for inlet make-up air and exhaust openings and the entry door.
Water separator means any device used to recover perchloroethylene from a water-perchloroethylene mixture.
Year or Yearly means any consecutive 12-month period of time.