GENERAL PROVISIONS
§ 23.71. Definitions.
The following words and terms, when used in this subchapter, have the following meanings, unless the context clearly indicates otherwise:
Drycleaning and dyeing—The business or process of cleaning or dyeing wearing apparel, cloth, fabrics, textiles, leather goods, feathers, furs and hats of any type or kind, by immersion and agitation or immersion only, in a commercially nonaqueous volatile or volatile and flammable liquid solvent, applied either manually or by means of a mechanical appliance, including sponging or brushing of such articles by the use of such solvents.
Fire-resistive construction—All buildings or parts of buildings which are constructed of such nonflammable material as stone, steel, concrete, brick, tile or expanded metal lath with plaster, when specifically permitted by a provision of this subchapter and other materials as may be approved from time to time.
Flash point—The temperature at which the solvent gives off vapor sufficient to form an ignitable mixture with the air.
Grade—The main elevation of the ground adjoining the building on all sides not exceeding one step of 8 inches.
Multiple story—More than one story or occupancy.
Story—That part comprised between the upper surface of any floor and the upper surface of the floor or roof next above in that portion of the building above grade, ground or curb level. If any mezzanine, balcony or gallery shall extend over 33% or more of the horizontal area within the outer walls of the building, it shall be considered as a story. A garret or pipe loft shall be considered as a story if the average ceiling height exceeds 8 feet and it is so constructed as to make occupancy of it possible. If any portion of a building is located above grade, ground or curb level, that portion shall be determined a story if the height of each of the two corners farthest above grade, ground or curb level shall average 5 feet or more above the grade, ground or curb level. These measurements shall be at grade, ground or curb levels to the upper side of the next floor above. Where a portion of the building is located below grade, ground or curb level and the average height from the first floor to the grade, ground or curb levels, measured at each of the two corners, farthest above grade, ground or curb level is greater than 5 feet, that portion below the first shall be determined as constituting a story.
Toxic—A solvent disseminated to areas that may tend to injure the health of employes.
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