As used in this article, the following terms
shall have the meanings indicated:
DRY CLEANING
The process of removing dirt, grease, paints and other stains
from wearing apparel, textiles, fabrics, rugs, etc., by the use of
nonaqueous liquid solvents, flammable or nonflammable, and it shall
include the process of dyeing clothes or other fabrics or textiles
in a solution of dye colors and nonaqueous liquid solvents.
RATED
As applied to solvents, classified as to fire hazard in accordance
with nationally recognized good practice.
Dry-cleaning systems shall be classified as
follows:
A. Class I systems shall be those utilizing solvents
rated above 40, including naphtha with a flash point of 50º F.
B. Class II systems shall be those utilizing solvents
rated 40 or below, but which do not comply with Class III or Class
IV requirements, including Stoddard solvent.
C. Class III systems shall be those employing equipment
listed by Underwriters' Laboratories, Inc., utilizing solvents having
specified characteristics and rated at 25 or below, including solvent
with a flash point of 140º F.
D. Class IV systems shall be those utilizing solvents
rated as nonflammable or as nonflammable at ordinary temperatures
and only moderately flammable at higher temperatures, rated not over
five, including carbon tetrachloride and perchloroethylene.