Pennsylvania Code › Title 25 - ENVIRONMENTAL PROTECTION › Part I - Department of Environmental Protection › Subpart C - Protection of Natural Resources › Article III - Air Resources › Chapter 129 - STANDARDS FOR SOURCES › SOURCES OF VOCs › Section 129.63 - Degreasing operations

Current through Register Vol. 54, No. 28, July 13, 2024
(a)
Cold cleaning machines
. Except for those subject to the
						Federal National emissions standards for hazardous air pollutants (NESHAP) for
						halogenated solvent cleaners under 40 CFR Part 63 (relating to National
						emission standards for hazardous air pollutants for source categories), this
						subsection applies to cold cleaning machines that use 2 gallons or more of
						solvents containing greater than 5% VOC content by weight for the cleaning of
						metal parts.
(1) Immersion cold cleaning
						machines shall have a freeboard ratio of 0.50 or greater.
(2) Immersion cold cleaning machines and
						remote reservoir cold cleaning machines shall:
(i) Have a permanent, conspicuous label
						summarizing the operating requirements in paragraph (3). In addition, the label
						shall include the following discretionary good operating practices:
(A) Cleaned parts should be drained at least
						15 seconds or until dripping ceases, whichever is longer. Parts having cavities
						or blind holes shall be tipped or rotated while the part is draining. During
						the draining, tipping or rotating, the parts should be positioned so that
						solvent drains directly back to the cold cleaning machine.
(B) When a pump-agitated solvent bath is
						used, the agitator should be operated to produce a rolling motion of the
						solvent with no observable splashing of the solvent against the tank walls or
						the parts being cleaned.
(C) Work
						area fans should be located and positioned so that they do not blow across the
						opening of the degreaser unit.
(ii) Be equipped with a cover that shall be
						closed at all times except during cleaning of parts or the addition or removal
						of solvent. For remote reservoir cold cleaning machines which drain directly
						into the solvent storage reservoir, a perforated drain with a diameter of not
						more than 6 inches shall constitute an acceptable cover.
(3) Cold cleaning machines shall be operated
						in accordance with the following procedures:
(i) Waste solvent shall be collected and
						stored in closed containers. The closed containers may contain a device that
						allows pressure relief, but does not allow liquid solvent to drain from the
						container.
(ii) Flushing of parts
						using a flexible hose or other flushing device shall be performed only within
						the cold cleaning machine. The solvent spray shall be a solid fluid stream, not
						an atomized or shower spray.
(iii)
						Sponges, fabric, wood, leather, paper products and other absorbent materials
						may not be cleaned in the cold cleaning machine.
(iv) Air agitated solvent baths may not be
						used.
(v) Spills during solvent
						transfer and use of the cold cleaning machine shall be cleaned up
						immediately.
(4) After
						December 22, 2002, a person may not use, sell or offer for sale for use in a
						cold cleaning machine any solvent with a vapor pressure of 1.0 millimeter of
						mercury (mm Hg) or greater and containing greater than 5% VOC by weight,
						measured at 20°C (68°F) containing VOCs.
(5) On and after December 22, 2002, a person
						who sells or offers for sale any solvent containing VOCs for use in a cold
						cleaning machine shall provide, to the purchaser, the following written
						information:
(i) The name and address of the
						solvent supplier.
(ii) The type of
						solvent including the product or vendor identification number.
(iii) The vapor pressure of the solvent
						measured in mm hg at 20°C (68°F).
(6) A person who operates a cold cleaning
						machine shall maintain for at least 2 years and shall provide to the
						Department, on request, the information specified in paragraph (5). An invoice,
						bill of sale, certificate that corresponds to a number of sales, Material
						Safety Data Sheet (MSDS), or other appropriate documentation acceptable to the
						Department may be used to comply with this section.
(7) Paragraph (4) does not apply:
(i) To cold cleaning machines used in extreme
						cleaning service.
(ii) If the owner
						or operator of the cold cleaning machine demonstrates, and the Department
						approves in writing, that compliance with paragraph (4) will result in unsafe
						operating conditions.
(iii) To
						immersion cold cleaning machines with a freeboard ratio equal to or greater
						than 0.75.