Title 7 Natural Resources and Environmental Control
1124 Control of Volatile Organic Compound Emissions
22.0 Coating of Miscellaneous Metal Parts
10/11/2011
22.1 Applicability
22.1.1 The provisions of 22.0 of this regulation apply to any miscellaneous metal parts and products coating unit. Except as provided in 22.1.2 of this regulation, every owner or operator of any miscellaneous metal parts and products coating unit shall comply with the provisions of 22.0 of this regulation on and after 04/11/2010.
22.1.2 Transition period for existing permitted sources. Every owner or operator of any miscellaneous metal parts and products coating unit that has a permit issued pursuant to 7 DE Admin. Code 1102 or 1130 containing all applicable conditions of 22.0 of this regulation, as that regulation existed on January 11, 1993, shall comply with those permit conditions until December 31, 2010. On and after January 1, 2011, every such owner or operator of any miscellaneous metal parts and products coating unit shall comply with the provisions of 22.0 of this regulation.
22.1.3 The provisions of 22.0 of this regulation do not apply to the following miscellaneous metal parts and products:
22.1.3.1 Parts covered by other sections of this regulation.
22.1.3.2 Exterior parts of completely assembled marine vessels.
22.1.4 Except as provided in 22.1.5 of this regulation, the provisions of 22.0 of this regulation do not apply to metal parts and products coating facilities whose actual emissions, without control devices, from all miscellaneous metal part and products coating units, including emissions from related cleaning activities, are less than 6.8 kilograms (kg) (15 pounds [lb]) of volatile organic compounds (VOCs) per day.
22.1.5 An owner or operator of a facility whose emissions are below the applicability threshold in 22.1.4 of this regulation shall comply with the certification, recordkeeping, and reporting requirements of 22.7.1 of this regulation.
22.1.6 Any facility that becomes or is currently subject to the provisions of 22.0 of this regulation by exceeding the applicability threshold in 22.1.4 of this regulation shall remain subject to these provisions even if its emissions later fall below the applicability threshold.
22.1.7 Any facility that is currently subject to a state or federal rule promulgated pursuant to the Clean Air Act Amendments of 1977 by exceeding an applicability threshold is and shall remain subject to these provisions, even if emissions later fall below the applicability threshold.
22.2 Definitions. As used in 22.0 of this regulation, all terms not defined herein shall have the meaning given them in the November 15, 1990 Clean Air Act Amendments (CAAA), or in 2.0 of this regulation.
“Camouflage coating” means a coating used principally by the military to conceal equipment from detection.
“Drum” means any cylindrical metal shipping container larger than 12 gallons capacity, but no larger than 110 gallon capacity.
“Electric-insulating varnish” means a non-convertible-type coating applied to electric motors, components of electric motors, or power transformers, to provide electrical, mechanical and environmental protection or resistance.
“Etching filler” means a coating that contains less than 23% solids by weight and at least 0.5 percent acid by weight and is used instead of applying a pretreatment coating followed by a primer.
“High-performance architectural coating” means a coating used to protect architectural subsections and which meets the requirements of the Architectural Aluminum Manufacturer Associations publication number AAMA 2604-05 (Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels) or 2605-05 (Voluntary Specification Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels).
“High-temperature coating” means a coating that is certified to withstand a temperature of 10000 F for 24 hours.
“Military specification coating” means a coating which has a formulation approved by a United States military agency for use on military equipment.
“Miscellaneous metal parts and products coating unit” means a coating unit in which a coating is applied to any miscellaneous metal parts and products.
“Miscellaneous parts and products” means any metal part or metal product, even if attached to or combined with a nonmetal part or product. Miscellaneous metal parts and products include, but are not limited to:
1. Large farm machinery (harvesting, fertilizing and planting machines, tractors, combines, etc.).
2. Small farm machinery (lawn and garden tractors, lawn mowers, rototillers, etc.).
3. Small appliances (fans, mixers, blenders, crock pots, dehumidifiers, vacuum cleaners, etc.).
4. Commercial machinery (office equipment, computers and auxiliary equipment, typewriters, calculators, vending machines, etc.).
5. Industrial machinery (pumps, compressors, conveyor components, fans, blowers, transformers, etc.).
6. Fabricated metal products (metal covered doors, frames, etc.).
7. Any other metal part or product that is within one of the following Standard Industrial Classification Codes: Major Group 33 (primary metal industries), Major Group 34 (fabricated metal products), Major Group 35 (nonelectric machinery), Major Group 36 (electrical machinery), Major Group 37 (transportation equipment), Major Group 38. (miscellaneous instruments), and Major Group 39 (miscellaneous manufacturing industries).
“Pail” means any cylindrical metal shipping container of 1- to 12-gallon capacity and constructed of 29-gauge and heavier material.
“Pan-backing coating” means a coating applied to the surface of pots, pans, or other cooking implements that are exposed directly to a flame or other heating elements.
“Prefabricated architectural component coating” means a coating applied to metal parts and products which is to be used as an architectural structure.
“Silicone-release coating” means a coating which contains silicone resin and is intended to prevent food from sticking to metal surfaces such as baking pans.
22.3 Standards
22.3.1 Except as provided for in 22.4, no owner or operator of a miscellaneous metal parts and products coating unit subject to 22.0 of this regulation shall cause or allow the application of any coating to miscellaneous metal parts and products unless:
22.3.1.1 The VOC content of the coating is less than or equal to the limits listed in Table 22-1 of this regulation, or
22.3.1.2 For a miscellaneous metal parts and products coating unit that applies multiple coatings, which are subject to the same numerical emission limitation in Table 22-1 of this regulation, the daily-weighted average VOC content, calculated in accordance with the procedure specified in Appendix C of this regulation, is less than or equal to the limit in Table 22-1 of this regulation corresponding to the category of coating used, or
22.3.1.3 Control equipment is installed and operated that achieves an emission reduction efficiency in accordance with 22.5 of this regulation. The requirements of 22.3.2 shall not apply to any metal parts and products coating unit that achieves an emission reduction efficiency of 95% or greater.
22.3.2 Except as provided in 22.3.1.3 and 22.4, no owner or operator of a miscellaneous metal parts and products coating unit subject to 22.0 of this regulation shall apply a coating to miscellaneous metal parts and products unless the coating is applied with equipment properly operated and maintained according to the manufacturer’s suggested guidelines and using one or more of the following coating application methods:
22.3.2.1 Electrostatic spray
22.3.2.2 Flow coating
22.3.2.3 Dip coating, including electrodeposition
22.3.2.4 Roll coating
22.3.2.5 High-volume, low-pressure (HVLP) spray
22.3.2.6 Hand application
22.3.2.7 An alternative method that is demonstrated to be capable of achieving a transfer efficiency equal to or better than HVLP spray and approved by the Department and by the EPA.
Table 22 – 1 Metal Parts and Products Coating VOC Content Limits
coating VOC content limits are expressed as mass (kilogram [kg] or pound [lb]) per volume
(liter [l] or gallon [gal]) of coating less water and exempt compounds, as applied
Air Dried |
Baked | |||
kg VOC/l |
lb VOC/gal |
kg VOC/l |
lb VOC/gal | |
Coating Category |
coating |
coating |
coating |
coating |
General One Component |
0.34 |
2.8 |
0.28 |
2.3 |
General Multi Component |
0.34 |
2.8 |
0.28 |
2.3 |
Camouflage |
0.42 |
3.5 |
0.36 |
3.0 |
Electric Insulating Varnish |
0.42 |
3.5 |
0.36 |
3.0 |
Electric Insulating and Thermal Conducting Coatings |
0.42 |
3.5 |
0.36 |
3.0 |
Etching Filler |
0.42 |
3.5 |
0.36 |
3.0 |
Extreme High Gloss |
0.42 |
3.5 |
0.36 |
3.0 |
Extreme Performance |
0.42 |
3.5 |
0.36 |
3.0 |
Heat Resistant |
0.42 |
3.5 |
0.36 |
3.0 |
High Performance Architectural |
0.42 |
3.5 |
0.36 |
3.0 |
High Temperature |
0.42 |
3.5 |
0.36 |
3.0 |
Magnetic Data Storage Disc Coatings |
0.42 |
3.5 |
0.36 |
3.0 |
Metallic |
0.42 |
3.5 |
0.36 |
3.0 |
Military Specification |
0.34 |
2.8 |
0.28 |
2.3 |
Mold Seal |
0.42 |
3.5 |
0.36 |
3.0 |
Pan Backing |
0.42 |
3.5 |
0.36 |
3.0 |
Prefabricated Architectural Multi Component |
0.42 |
3.5 |
0.28 |
2.3 |
Prefabricated Architectural One Component |
0.42 |
3.5 |
0.28 |
2.3 |
Pretreatment Coatings |
0.42 |
3.5 |
0.36 |
3.0 |
Repair and Touch Up |
0.42 |
3.5 |
0.36 |
3.0 |
Safety Indicating Coatings |
0.42 |
3.5 |
0.36 |
3.0 |
Silicone Release |
0.42 |
3.5 |
0.42 |
3.5 |
Solar Absorbent |
0.42 |
3.5 |
0.36 |
3.0 |
Solid-Film Lubricant |
0.42 |
3.5 |
0.36 |
3.0 |
Stencil Coatings |
0.42 |
3.5 |
0.36 |
3.0 |
Vacuum Metalizing |
0.42 |
3.5 |
0.42 |
3.5 |
Drum Coating, New, Exterior |
0.34 |
2.8 |
0.34 |
2.8 |
Drum Coating, New, Interior |
0.42 |
3.5 |
0.42 |
3.5 |
Drum Coating, Reconditioned, Exterior |
0.42 |
3.5 |
0.36 |
3.0 |
Drum Coating, Reconditioned, Interior |
0.50 |
4.2 |
0.50 |
4.2 |
22.4 Specific Exemptions
22.4.1 The requirements of 22.3.1 and 22.3.2 of this regulation shall not apply to the following coatings and coating operations:
22.4.1.1 Plastic extruded onto metal parts to form a coating,
22.4.1.2 Aerosol coating product, and
22.4.1.3 Powder coatings.
22.4.2 The requirements of 22.3.2 of this regulation shall not apply to the following coatings and coating operations:
22.4.2.1 Texture coatings, and
22.4.2.2 Repair and Touch up coatings.
22.5 Control Devices
22.5.1 An owner or operator of a miscellaneous metal parts and products coating unit subject to 22.3.1.3 of this regulation shall determine the emission efficiency needed to comply and demonstrate compliance as follows:
22.5.1.1 Determine for each day the overall emission reduction efficiency needed to demonstrate compliance. The overall emission reduction needed for a day is the lesser of the value calculated according to the procedure in 3.3 of Appendix C of this regulation for that day or 95%.
22.5.1.2 Demonstrate each day that the overall emission reduction efficiency achieved for that day, as determined in Appendix D of this regulation, is greater than or equal to the overall emission reduction efficiency required for that day.
22.5.2 An owner or operator of a miscellaneous metal parts and products coating unit subject to 22.3.1.3 of this regulation shall ensure that:
22.5.2.1 A capture system and control device are operated at all times that the unit is in operation, and the owner or operator demonstrates compliance with 22.0 of this regulation through the applicable coating analysis and capture system and control device efficiency test methods specified in Appendix B, Appendix D and Appendix E of this regulation and in accordance with the capture efficiency test methods in Appendix D of this regulation.
22.5.2.2 The control device is equipped with the applicable monitoring equipment specified in 2.0 of Appendix D of this regulation, and the monitoring equipment is installed, calibrated, operated, and maintained according to the vendor's specifications at all times the control device is in use.
22.6 Test methods. The test methods found in Appendix A through Appendix D of this regulation shall be used to determine compliance with 22.0 of this regulation.
22.6.1 The acid content of pretreatment coatings and etching fillers shall be determined by the ASTM International Method D-1613 -06.
22.6.2 The metal particle content of metallic coatings shall be determined by the California South Coast Air Quality Management District (SCAQMD) Method 318 “Determination of Weight Percent of Elemental Metal in Coatings by X-Ray Diffraction Method” contained in the SCAQMD “Laboratory Methods of Analysis of Enforcement Samples” (for coatings containing aluminum) or by SCAQMD Method 311 “Analysis of Percent Metal in Metallic Coatings by Spectrographic Method” contained in the SCAQMD “Laboratory Method of Analysis of Enforcement Samples” (for coatings containing metals other than aluminum).
22.7 Compliance Certification, Recordkeeping and rReporting Requirements.
22.7.1 An owner or operator of a miscellaneous metal parts and products coating unit exempt from the emission requirements in 22.3 of this regulation shall comply with the certification, recordkeeping, and reporting requirements in 4.2 of this regulation.
22.7.2 An owner or operator of a miscellaneous metal parts and products coating unit subject to 22.0 of this regulation and complying with 22.3.1.1 of this regulation by the use of compliant coatings shall comply with the certification, recordkeeping, and reporting requirements in 4.3 of this regulation.
22.7.3 An owner or operator of a miscellaneous metal parts and products coating unit subject to 22.0 of this regulation and complying with 22.3.1.2 of this regulation through the use of daily-weighted averaging shall comply with the certification, recordkeeping, and reporting requirements in 4.4 of this regulation.
22.7.4 An owner or operator of a miscellaneous metal parts and products coating unit subject to 22.0 of this regulation and complying with 22.3.1.3 of this regulation by the use of control devices shall comply with the testing, certification, reporting, and recordkeeping requirements in 4.5 of this regulation.
22.7.5 An owner or operator of a metal parts coating unit subject to 22.3.2 of this regulation shall maintain at the facility a copy of the equipment manufacturer’s suggested operating and maintenance guidelines, and provide a copy to the Department upon request.
13 DE Reg. 1344 (04/01/10)
14 DE Reg. 1206 (05/01/11)
15 DE Reg. 532 (10/01/11)
