7 DE Admin Code 1124 "Control of Volatile Organic Compound Emissions" 

8.0 Handling, Storage, and Disposal of Volatile Organic Compounds (VOCs) 

03/11/2011 

8.1	 Except as provided for in 8.3 of this regulation, the requirements of 8.0 of this regulation apply to 

any facility that is subject to any of the requirements of 10.0 through 50.0 of this regulation, and any 

facility that emits at least 6.8 kg/day (15 Ib/day) of VOC before consideration of controls. 

8.2	 Definitions 

"Cleanup solvent" means a VOC-eontaining material used to remove any loosely held uncured (i.e., 

not dry to the touch) adhesive or sealant that is subject to 4.0 of 7 DE Admin Code 1141 from a 

substrate, or to clean equipment used in applying an adhesive or sealant subject to 4.0 of 7 DE 

Admin Code 1141. 

"Electrical and electronic components" means components and assemblies of components that 

generate, convert, transmit, or modify electrical energy. Electrical and electronic components 

include, but are not limited to, wires, windings, stators, rotors, magnets, contacts, relays, printed 

circuit boards, printed wire assemblies, wiring boards, integrated circUits, resistors, capacitors and 

transistors. Cabinets in which electrical and electronic components are housed are not 

considered electrical and electronic components. 

"Flushing" means pumping a solvent from a reservoir through a pipe or hose or through equipment 

(e.g., pipes, hoses, tanks) to remove contaminants or residue. 

"Hand-Wiping" means a method of cleaning a surface by physically rubbing it with a material such as 

a rag, paper, sponge or a cotton swab moistened with a solvent. 

"Medical device" means an instrument, apparatus, implement, machine, contrivance, implant, in vitro 

reagent or other similar article, including any component or accessory that is, (i) intended for use 

in the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention 

of diseases, or (ii) is intended to affect the structure or any function of the body, or (iii) is defined in 

the National Formulary or the United States Pharmacopoeia or any supplement to it. 

"Non-manufacturing area cleaning" means the cleaning of cafeterias, laboratories, pilot facilities, 

restrooms, office buildings, etc. 

"Medical device and pharmaceutical manufacturing" means medical devices; pharmaceutical 

products; and associated manufacturing and product handling equipment and material, wor!< 

surfaces, maintenance tools and room surfaces that are subject to US FDA Current Good 

Manufacturing/Laboratory Practice, or CDC/NIH guidelines for biological disinfection of surfaces. 

"Pharmaceutical product" means a preparation or compound, which includes any drug, analgesic, 

decongestant, antihistamine, cough suppressant, vitamin, mineral or herb supplement intended 

for human or animal consumption and used to cure, mitigate or treat disease or improve or 

enhance health. 

"Precision optics" means the optical elements used in electro-optical devices that are designed to 

sense, detect, or transmit light energy, including specific wavelengths of light energy and changes 

of light energy levels. 

·Solvent cleaning operation" means the removal of uncured adhesives, inks, coatings, or 

contaminants including dirt, soil, and grease from parts, products, tools, machinery, equipment, 

and general wor!< areas. Solvent cleaning operations include hand-wiping, surface preparation, 

flushing and the cleaning of spray guns/cleaning of equipment used to spray coatings, adhesives, 

etc. 

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"Stripping" means the removal of cured coatings, cured inks, or cured adhesives. 

"Surface preparation" means the removal of contaminants such as dust, soil, oil, grease, etc., prior 

to coating, adhesive, or ink applications. 

"Surface preparation solvent" means a solvent used to remove dirt, oil and other contaminants from 

a substrate prior to the application of a primer, adhesive or sealant that is subject to 4.0 of 7 DE 

Admin Code 1141. 

8.3 Exemptions 

8.3.1	 The requirements of 8.0 this regulation do not apply to any equipment or operation that is 

specifically subject to the emission limitations of 10.0, 11.0 or 38.0 of this regulation; or to 

any piece of equipment that is specifically subject to the requirements of 33.0 of this 

regulation. 

8.3.2	 Existing sources affected by 8.0 of this regulation shall comply with the provisions of 8.0 

of this regulation on and alter March 11, 2011, except for the requirements of 8.5 of this 

regulation. Existing sources affected by 8.5 of this regulation shall comply with the 

requirements of 8.5 of this regulation beginning as soon as practical, but no later than 

March 11, 2012. New, modified, or reconstructed sources affected by 8.0 of this 

regulation shall comply with the provisions of 8.0 of this regulation on and alter startup. 

8.3.3	 The requirements of 8.5 of this regulation shall not apply to any facility subject to 47.0 of 

this regulation, or to: 

8.3.3.1	 The surface preparation or cleaning of electrical and electronic components; 

8.3.3.2	 The surface preparation or cleaning of precision optics; 

8.3.3.3	 The surface preparation or cleaning of numismatic dies; 

8.3.3.4	 Stripping of cured inks, coatings, and adhesives; 

8.3.3.5	 The cleaning of resin, coating, ink, and adhesive mixing, molding, and 

application equipment; 

8.3.3.6	 Surface preparation associated with research and development activities; 

8.3.3.7	 Surface preparation associated with medical device and pharmaceutical 

manufacturing; 

8.3.3.8	 Gleaning associated with performance or quality assurance testing of coatings, 

inks, or adhesives involved; 

8.3.3.9	 Non-manufacturing area cleaning, and 

8.3.3.10	 The use of any surface preparation solvent or cleanup solvent sUbject to 4.0 of 

7 DE Admin Code 1141. 

8.4 Work Practice Standards 

8.4.1	 No owner or operator of a facility subject to 8.4 of this regulation may cause, allow, or 

permit the disposal of more than five kilograms (kg) (11 pounds [Ib]) of any VaG, or of 

any materials containing more than five kg (11 Ib) of any vacs, at that facility in anyone 

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8.4.2 

8.4.3 

8.4.4 

8.4.5 

8.4.6 

day in a manner that would permit the evaporation of vac into the ambient air. This 

provision does not apply to: 

8.4.1.1	 Any VaG or material containing VaG emitted from a regulated entity that is 

subject to a VaG standard under this regulation. 

8.4.1.2	 Coating sources that are exempt from the emission limitations of 10.0 through 

23.0 of this regulation. 

8.4.1.3	 Waste paint (sludge) handling systems, water treatment systems, and other 

similar operations at coating facilities using complying coatings. 

8.4.1.4	 Any vac or material containing VaGs used during process maintenance 

tumarounds for cleaning purposes, provided that the provisions of 8.4.3, 8.4.4, 

8.4.5 and 8.4.6 of this regulation are followed. 

The requirements of 8.4.1 of this regulation include, but are not limited to, the disposal of 

vac from vac control devices. 

No owner or operator of a facility subject to 8.4 of this regulation shall use open 

containers for the storage or disposal of cloth or paper impregnated with vacs. 

Containers for the storage or disposal of cloth or paper impregnated with vacs shall be 

kept closed, except when adding or removing material. 

No owner or operator of a facility subject to 8.4 of this regulation shall store in open 

containers spent or fresh vac or vac containing. Containers for the storage of spent or 

fresh vacs or vac containing material shall be kept closed, except when adding or 

removing material. 

No owner or operator of a facility subject to 8.4 of this regulation shall use vac for the 

cleanup of spray equipment unless one or more of the following methods are used to 

collect the cleaning compounds and to minimize their evaporation to the atmosphere. 

8.4.5.1	 Use of an enclosed spray gun cleaning system that is kept closed when 

not in use. 

8.4.5.2	 Non-atomized discharge of solvent into a waste container that is kept 

closed when not in use. 

8.4.5.3	 Disassembly of the spray gun and cleaning in a vat that is kept closed 

when not in use. 

8.4.5.4	 Atomized spray into a waste container that is fitted with a device that 

captures atomized solvent emissions. 

8.4.5.5	 Any alternative technique that has been demonstrated to, and accepted 

by the Department as producing emissions that are equal to or less than 

the emissions from the techniques specified in 8.4.5.1 through 8.4.5.4 of 

this regulation. Emissions from any alternative technique shall be 

demonstrated pursuant to test protocols that are approved in advance by 

the Department. 

Any owner or operator of a facility subject to 8.4 of this regulation shall: 

8.4.6.1	 Convey VaC-containing cleaning materials from one location to another 

in closed containers or pipes. 

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8.4.6.2	 Handle and transfer all fresh and spent cleaning solvent and other VOCcontaining material to or from any container, tank, vat, vessel, mixing 

vessel, or piping system, etc. in such a manner that minimizes spills and 

other losses. 

8.4.6.3	 Clean up spills of fresh and spent cleaning solvent and other VOCcontaining material immediately. 

8.4.7	 Any owner or operator of a facility subject to 8.4 of this regulation shall minimize air 

circulation around cleaning operations and shall implement equipment practices that 

minimize emissions including keeping part cleaners covered when not in use, and 

maintaining cleaning equipment to repair solvent leaks. 

8.5	 Control Requirements. No owner or operator of a facility subject to 8.5 of this regulation shall use 

any liquid VOC containing material for any solvent cleaning operation that does not meet one of the 

requirements of 8.5.1 through 8.5.3. 

8.5.1	 The VOC content is equal to or less than 50 grams VOC per liter (0.42 Ib/gal), as applied, 

or 

8.5.2	 The VOC composite vapor pressure is equal to or less than 8 millimeters of mercury 

(mmHg) at20 degrees Celsius (20°C), as applied, or 

8.5.3	 The emissions of that material are controlled by an emission control system that: 

8.5.3.1	 Achieves an overall control efficiency of equal to or greater than 85 percent, by 

weight, or 

8.5.3.2	 Maintains a maximum outlet total organic carbon concentration of 20 parts per 

million by volume (ppmv) as carbon (C1) on a dry basis. 

8.6	 Test Methods and Procedures 

8.6.1	 Any owner or operator subject to 8.5.1 of this regulation shall determine the VOC content 

of each cleaning solution using the test methods and procedures specified in Appendix A 

and Appendix B of this regulation, or using the manufacturer's product formulation data, 

and the following equation: 

VOC Content (in grams per liter of material) = (Ws -Ww -W..)Nm 

(8-1 ) 

where:
 

Ws =Weight of volatile compounds in grams (g);
 

Ww =Weight of water, in g;
 

We. = Weight of exempt compounds in g;
 

Vm =Volume of material in liters
 

8.6.2	 Any owner or operator SUbject to 8.5.2 of this regulation shall determine the VOC 

composite vapor pressure of each cleaning solution using the test methods and 

procedures specified in Appendix A and Appendix B of this regulation, or using the 

manufacturer's product formulation data, and the following equation: 

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(8-2) 

where: 

W, = Weight of the i

th vac compound, in grams (g); 

Ww = Weight of water, in g; 

W. =Weight of exempt compound, in g; 

MW, = Molecular weight of the i

th vac compound, in grams per gram-mole 

MWw =Molecular weight of water, in grams per gram-mole 

MW. = Molecular weight of exempt compound, in grams per gram-mole; 

PPc =vac composite partial pressure at 20·C, in mmHg 

VP, =Vapor pressure of the i

th vac compound at 20·C, in mmHg 

8.6.3	 Any owner or operator subject to 8.5.3 of this regulation shall conduct an initial test to 

demonstrate the efficiency of each emission control system using the applicable test 

methods and procedures specified in Appendix A through Appendix E of this regulation. 

The cleaning operation shall operate at maximum operating conditions and flow rates 

during any emission testing. 

8.7.	 Recordkeeping. Any owner or operator SUbject to 8.5 of this regulation shall maintain all of the 

information necessary for the Department to determine compliance with the applicable requirements 

of 8.5 of this regulation. Such information shall be made available to the Department upon verbal or 

written request, and shall be maintained for a minimum of five years from the date such record is 

created. Information sufficient to determine compliance shall include, but is not limited to the 

following: 

8.7.1	 Name and quantity of each cleaning solvent used, 

8.7.2	 vac content or vapor pressure of each cleaning solvent, as applied, 

8.7.3	 Material Safety Data Sheets for all cleaning solvents used, 

8.7.4	 Documentation of air pollution control equipment efficiency or capture efficiency, if 

applicable, 

8.7.5	 Date and type of maintenance performed on air pollution control or capture equipment, 

if applicable, and 

8.7.6	 Quantity of non-compliant solvent used, in gallons, for each day, each week, and 

calendar year. 

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