Cold cleaners, open top vapor degreasers, and conveyorized
degreasers are exempt from this rule if they use fluids which are not
photochemically reactive. These fluids are defined in the definition of VOC
under OAR 340-200-0020.
(1) The owner or operator of dip tank cold
cleaners must comply with the equipment specifications in this section:
(a) Be equipped with a cover that is readily
opened and closed. This is required of all cold cleaners, whether a dip tank or
not;
(b) Be equipped with a drain
rack, suspension basket, or suspension hoist that returns the drained solvent
to the solvent bath;
(c) Have a
freeboard ratio of at least 0.5;
(d) Have a visible fill line.
(2) An owner or operator of a cold
cleaner must follow the required operating parameters and work practices. The
owner must post and maintain in the work area of each cold cleaner a pictograph
or instructions clearly explaining the work practices in this section:
(a) The solvent level may not be above the
fill line;
(b) The spraying of
parts to be cleaned must be performed only within the confines of the cold
cleaner;
(c) The cover of the cold
cleaner must be closed when not in use or when parts are being soaked or
cleaned by solvent agitation;
(d)
Solvent-cleaned parts must be rotated to drain cavities or blind holes and then
set to drain until dripping has stopped;
(e) Waste solvent must be stored in covered
containers and returned to the supplier or a disposal firm handling solvents
for final disposal, such that no greater than 20 percent of the waste by weight
can evaporate into the atmosphere. Handling of the waste must also be done in
accordance with DEQ's solid and Hazardous Waste Rules, OAR 340 division 100.
(3) The owner or
operator must maintain cold cleaners in good working condition and free of
solvent leaks.
(4) If the solvent
has a volatility greater than 2.0 kPa (0.3 psi) measured at 38° C.
(100° F.), or if the solvent is agitated or heated, then the cover must be
designed so that it can be easily operated with one hand or foot.
(5) If the solvent has a volatility greater
than 4.3 kPa (0.6 psi) measured at 38° C. (100° F.), then the drainage
facility must be internal, so that parts are enclosed under the cover while
draining. The drainage facility may be external for applications where an
internal type cannot fit into the cleaning system.
(6) If the solvent has a volatility greater
than 4.3 kPa (0.6 psi) measured at 38° C. (100° F.), or if the solvent
is heated above 50° C. (120° F.), then one of the following solvent
vapor control systems must be used:
(a) The
freeboard ratio must be equal to or greater than 0.70; or
(b) Water must be kept over the solvent,
which must be insoluble in and heavier than water; or
(c) Other systems of equivalent control, such
as a refrigerated chiller.
NOTE: This rule is included in the State of Oregon
Clean Air Act Implementation Plan that EQC adopted under OAR
340-200-0040.
Notes
Or. Admin. Code
§
340-232-0180
DEQ 21-1978, f. & ef.
12-28-78; DEQ 17-1979, f. & ef. 6-22-79; DEQ 23-1980, f. & ef. 9-26-80;
DEQ 3-1986, f. & ef. 2-12-86; DEQ 8-1991, f. & cert. ef. 5-16-91; DEQ
4-1993, f. & cert. ef. 3-10-93; DEQ 20-1998, f. & cert. ef. 10-12-98;
DEQ 14-1999, f. & cert. ef. 10-14-99, Renumbered from 340-022-0180;
DEQ
7-2015, f. & cert. ef.
4/16/2015
Stat. Auth.: ORS
468.020,
468A.025 &
468A.070
Stats. Implemented: ORS
468A.025 &
468A.070
