35 Ill. Adm. Code 219.630
Clean Up
Section 219
Section 219.630 Clean Up
a) No person shall clean paint or ink manufacturing equipment
with organic solvent unless the equipment being cleaned is completely covered
or enclosed except for an opening no larger than necessary to allow safe
clearance for proper operation of the cleaning equipment, considering the
method and materials being used.
b) No person shall store organic wash solvent in other than
closed containers, unless closed containers are demonstrated to be a safety
hazard, or dispose of organic wash solvent in a manner such that more than 20
percent by weight is allowed to evaporate into the atmosphere.