Allegheny County, PA Methods

Except as provided below in this section, the following methods shall be used to determine particulate matter emissions from stationary sources, as specified in Chapters 1 through 5 inclusive of the Allegheny County Source Testing Manual:

Method 1 through 5F inclusive, Determination of Particulate Emissions from Stationary Sources, United States Environmental Protection Agency, 40 CFR 60, Appendix A.

Determination of compliance with the pushing emission standard for coke ovens set forth in § 505-45B of this chapter shall be performed as specified in Chapter 54 of the Allegheny County Source Testing Manual, entitled "Determination of Particulate Emissions for Coke Oven Pushing Sources."

Determination of compliance with particulate matter standards for sources equipped with pressurized baghouses shall be performed as specified in Chapter 45 of the Allegheny County Source Testing Manual, entitled "Determination of Particulate Matter from Pressurized Baghouses."

Determination of compliance with particulate matter standards for sources equipped with modular baghouses shall be performed as specified in Chapter 47 of the Allegheny County Source Testing Manual, entitled "Determination of Particulate Matter from Modular Baghouses."

The following methods shall be used to determine PM-10 emissions from stationary sources, as specified in Chapter 201 of the Allegheny County Source Testing Manual:

Method 201, Determination of PM-10 Emissions (Exhaust Gas Recycle Procedure), United States Environmental Protection Agency, 40 CFR 51, Appendix M; or

Method 201A, Determination of PM-10 Emissions (Constant Sampling Rate Procedure), United States Environmental Protection Agency, 40 CFR 51, Appendix M.

The following method shall be used to determine condensible particulate emissions from stationary sources, as specified in Chapter 202 of the Allegheny County Source Testing Manual:

Method 202, Determination of Condensible Particulate Emissions from Stationary Sources, United States Environmental Protection Agency, 40 CFR 51, Appendix M.

Determination of compliance with PM-10 standards for fugitive emissions from sources located within a structure shall be performed as specified in Chapter 53 of the Allegheny County Source Testing Manual, entitled "Determination of Inhalable Fugitive Particulate Emissions from Air Pollution Sources Within a Structure."

Calibration. Calibration of test instruments shall be performed as specified in Chapter 50 of the Allegheny County Source Testing Manual relating to calibration and maintenance.

§ 505-60 Sulfur oxides.

The following methods shall be used to determine sulfur oxide emissions from stationary sources, as specified in Chapters 6 and 8 of the Allegheny County Source Testing Manual:

Methods 6 through 6C, Determination of Sulfur Dioxide Emissions from Stationary Sources; and

Method 8, Determination of Sulfuric Acid Mist and Sulfur Dioxide Emissions from Stationary Sources, United States Environmental Protection Agency, 40 CFR 60, Appendix A.

§ 505-61 Volatile organic compounds.

General. The following method shall be used to determine volatile organic compound emissions from stationary sources, as specified in Chapter 25 of the Allegheny County Source Testing Manual:

Method 25, Determination of Total Gaseous Non-Methane Organic Emissions as Carbon, "Standards for Performance for New Stationary Sources; Addition of Reference Methods 24 and 25 to Appendix A," Federal Register, Part VII, Volume 45, Number 194, Pages 65956 - 65973, October 3, 1980, Washington, D.C.

Method 25A, Determination of Total Gaseous Organic Concentration Using a Flame Ionization Analyzer, U.S. EPA Appendix A - Reference Methods (as amended at Fed. Reg., V. 55, No. 220, Pg. 47471, Nov. 14, 1990, Washington, D.C.), 40 CFR Chapter I, Part 60, Appendix A, Method 25A, Washington, D.C., "Measurement of Volatile Organic Compounds - Guideline Series," U.S. EPA, Research Triangle Park, NC, Publ. No. EPA-450/2-78-041, June, 1978, pp. 46-54.

Method 25B, Determination of Total Gaseous Organic Concentration Using a Nondispersive Infrared Analyzer, U.S. EPA Appendix A - Reference Methods (as amended at Fed. Reg., V. 55, No. 220, Pg. 47471, Nov. 14, 1990, Washington, D.C.), 40 CFR Chapter I, Part 60, Appendix A, Method 25B, Washington, D.C., "Measurement of Volatile Organic Compounds - Guideline Series," U.S. EPA, Research Triangle Park, NC, Publ. No. EPA-450/2-78-041, June, 1978, pp. 46-54.

Gasoline vapor recovery systems. The following methods shall be used to determine volatile organic compound emissions from vapor recovery systems for gasoline loading operations:

Emission test procedures for tank truck gasoline loading terminals (Appendix A), "Control of Hydrocarbons from Tank Truck Gasoline Loading Terminals", EPA - 450/2-77-026, United States Environmental Protection Agency, October, 1977, as specified in Chapter 55 of the Allegheny County Source Testing Manual, entitled "Determination of Volatile Organic Compound Emissions from Vapor Recovery Systems for Gasoline Loading Operations."

Sampling and Testing Procedure for Gasoline Facilities, Allegheny County Source Testing Manual, Chapters 25 and 27.

Surface coatings. The following methods shall be used to determine the volatile organic compound content, water content, and density of surface coatings and inks, as specified in Chapter 24 of the Allegheny County Source Testing Manual: Method 24, Determination of Volatile Matter Content, Water Content, Density, Volume Solids, and Weight Solids of Surface Coatings, "Standards for Performance for New Stationary Sources; Addition of Reference Methods 24 and 25 to Appendix A," Federal Register, Part VII, Volume 45, Number 194, Pages 65956 - 65973, October 3, 1980, Washington, D.C.

Effluent water. The following method shall be used to determine the volatile organic compound content of effluent water: Standard Methods for the Examination of Water and Wastewater, 14th Edition, "Organic Carbon (total), Combustion - Infrared Method", American Public Health Association, Washington, D.C., as specified in Chapter 46 of the Allegheny County Source Testing Manual, entitled "Determination of Volatile Organic Compound Content of Effluent H₂O."

Control system effectiveness. The following methods shall be used to determine the effectiveness of vapor recovery systems and similar control equipment for volatile organic compound emissions: "Sampling and Testing Procedure for Gasoline Facilities", Allegheny County Source Testing Manual, Chapter 25.

Tank trucks. The following method shall be used to determine the leak tightness of gasoline tank trucks and vapor recovery systems pursuant to § 505- 44D of this chapter: Pressure - Vacuum Test Procedures for Leak Tightness of Truck Tanks (Appendix A), "Control of Volatile Organic Compound Leaks from Gasoline Tank Trucks and Vapor Collection Systems", EPA - 450/2-78-051, U.S. Environmental Protection Agency, December, 1978, as specified in Chapter 56 of the Allegheny County Source Testing Manual, entitled "Determination of the Leak Tightness of Gasoline Tank Trucks and Vapor Recovery Systems."

Tank trucks and vapor collection systems. The following method shall be used to determine the magnitude of leaks of volatile organic compounds from gasoline tank trucks and vapor collection systems and shall be used in the annual tests required of gasoline tank trucks: Gasoline vapor leak detection procedure by combustible gas detector (Appendix B), "Control of Volatile Organic Compound Leaks from Gasoline Tank Trucks and Vapor Collection Systems", EPA - 450/2-78-051, U.S. Environmental Protection Agency, December, 1978, as specified in Chapter 57 of the Allegheny County Source Testing Manual, entitled "Determination of the Magnitude of Leaks of Volatile Organic Compounds from Gasoline Tank Trucks and Vapor Recovery Systems."

Perchloroethylene dry-cleaning facilities. The following method shall be used to determine compliance with the requirements of § 505-44I of this chapter, relating to perchloroethylene dry-cleaning facilities: Appendix B, "Compliance Test Method and Leak Detection Equipment for Perchloroethylene Dry Cleaners", Measurement of Volatile Organic Compounds, U.S. Environmental Protection Agency, EPA - 450/2-78-041, Washington, D.C., as specified in Chapter 58 of the Allegheny County Source Testing Manual, entitled "Determination of Compliance of Perchloroethylene Dry Cleaning Facilities."

Synthetic organic chemical and polymer manufacturing and petroleum refinery equipment. The following method shall be used to determine the magnitude of volatile organic compound leaks from synthetic organic chemical and polymer manufacturing and petroleum refinery equipment, as specified in Chapter 21 of the Allegheny County Source Testing Manual: Method 21 - Determination of Volatile Organic Compounds Leaks, 40 CFR Part 60, Appendix A, 48 FR 37600, August 18, 1983, Washington, D.C.

Petroleum solvent dry-cleaning facilities.

Any person who operates, or allows to be operated, any affected petroleum solvent dry cleaning dryer shall calculate the weight of VOC's vented from the dryer emission control device by using EPA Reference Test (40 CFR Part 60) Methods 1, 2, and 25A as specified in Chapters 1, 2, and 25 of the Allegheny County Source Testing Manual.

Any person who operates, or allows to be operated, any affected petroleum solvent dry-cleaning facility demonstrating compliance, where employing a petroleum solvent filtration system but not employing cartridge filters, shall calculate, record, and report to the Department the weight of VOC's contained in each of at least five three-pound samples of filtration waste material taken at intervals of at least one week by employing ASTM Method D322-80 (Standard Test Method for Gasoline Diluent in used Gasoline Engine Oils by Distillation), as specified in Chapter 59 of the Allegheny County Source Testing Manual, entitled "Determination of Compliance of Petroleum Solvent Dry Cleaning Facilities Employing a Petroleum Solvent Filtration System But Not Employing Cartridge Filters."

§ 505-62 Nitrogen oxides.

The following method shall be used to determine nitrogen oxide emissions from stationary sources, as specified in Chapter 7 of the Allegheny County Source Testing Manual: Methods 7, 7A, 7C, 7D, and 7E - "Determination of Nitrogen Oxide Emissions from Stationary Sources", United States Environmental Protection Agency, 40 CFR 60, Appendix A.

§ 505-63 Incinerator temperatures.

Measurement of incinerator temperatures shall be performed as specified in Chapter 40 of the Allegheny County Source Testing Manual, entitled "Determination of Incineration Temperatures."

§ 505-64 Coke oven emissions.

Unless otherwise specified in the applicable regulation, measurements of emissions from coke ovens and coke oven batteries shall be performed as specified in Chapter 109 of the Allegheny County Source Testing Manual, entitled "Determination of Emissions from Coke Ovens." Measurements of water quality shall be performed according to procedures established or approved by the Commonwealth.

§ 505-65 Coke oven gas.

Measurements of the hydrogen sulfide concentration of coke oven gas shall be performed as specified in Chapter 44 of the Allegheny County Source Testing Manual, entitled "Determination of Hydrogen Sulfide from Coke Oven Gas."

§ 505-66 Hydrogen sulfide.

Hydrogen sulfide. The following method shall be used to determine hydrogen sulfide emissions from stationary sources, as specified in Chapter 15 of the Allegheny County Source Testing Manual: Method 15 - "Determination of Hydrogen Sulfide, Carbonyl Sulfide, and Carbon Disulfide Emissions from Stationary Sources," United States Environmental Protection Agency, 40 CFR 60, Appendix A.

§ 505-67 Sulfur content of coke.

The following method shall be used to determine the sulfur content of coke, as specified in Chapter 49 of the Allegheny County Source Testing Manual: "Standard Test Method for Total Sulfur in the Analysis Sample of Coal and Coke," American Society for Testing Materials, D 3177, 1916 Race Street, Philadelphia, PA.

§ 505-68 Visible emissions.

[Amended 2-6-2007 by Ord. No. 4-07[1]]

Measurements of visible emissions shall be performed in either of the following two ways:

As specified in Chapter 9 of the Allegheny County Source Testing Manual, entitled "Visible Determination of the Opacity of Emissions from Stationary Sources"; or

Using any continuous opacity monitoring system (COMS) required by regulation, permit, consent agreement, consent decree, or enforcement order.

[1]

Editor's Note: This amendment was initially adopted by the County Health Department 11-1-2006.

§ 505-69 Waste-derived liquid fuel.

Sampling and analysis and equipment testing to determine compliance with the waste-derived liquid fuel burning regulations under this chapter shall be performed as specified in Chapter 52 of the Allegheny County Source Testing Manual.

§ 505-70 Odor emissions.

Measurements of odor emissions beyond source boundary lines shall be performed as specified in Chapter 48 of the Allegheny County Source Testing Manual, entitled "Measurement of Odor Emissions Beyond Source Boundary Lines".

§ 505-71 Lead.

The following methods shall be used to determine the lead content of paint, as specified in the Allegheny County Source Testing Manual:

Field Sampling of Coating Films for Laboratory Analysis of Toxic Metal Content (KTA/SET Method LD2), Steel Structures Painting Council Publ No. 94-18.

ASTM E 1645, Practice for the Preparation of Dried Paint Samples for Subsequent Analysis by Atomic Spectrometry.

ASTM D 3335, Standard Test Method for Low Concentrations of Lead, Cadmium, and Cobalt in Paint by Atomic Absorption Spectroscopy.

EPA Method 6010, Inductively Coupled Plasma Atomic Emission Spectroscopy.

ASTM E 1613, Standard Method for the Analysis of Digested Samples for Lead by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), Flame Atomic Absorption (FAAS), or Graphite Furnace.

§ 505-71.1 Control of VOC emissions from miscellaneous metal and/or plastic parts surface coating processes.

[Added 5-22-2013 by Ord. No. 16-13]

Applicability. Beginning January 1,2014, this section applies to the owner or operator of a miscellaneous metal parts and/or plastic parts surface coating processes, where the total actual VOC emissions from all miscellaneous metal parts and/or plastic parts surface coating processes, including related cleaning activities, at that facility are equal to or greater than 15 pounds (6.8 kilograms) per day or 2.7 tons (2,455 kilograms) per twelve-month rolling period, before controls. The provisions of this rule shall not apply to the following source categories listed for regulation under Section 183(e) of the Clean Air Act:

Shipbuilding and repair coatings;

Aerospace coatings;

Wood furniture coatings;

Metal furniture coatings;

Large appliance coatings;

Auto and light-duty truck assembly coatings;

Flat wood paneling coatings;

(8)

Miscellaneous industrial adhesives;

(9)

Fiberglass boat manufacturing materials;

(10)

Paper, film, and foil coatings; or

(11)

Can coatings, coil coatings or magnet wire coatings which are not listed under Section 183(e) of the Act, but were addressed by § 505-44A.

Limitations. A person may not cause or permit the emission into the outdoor atmosphere of VOCs from a miscellaneous metal parts and/or plastic parts surface coating processes, unless one of the following limitations is met:

The VOC content of each applied coating is equal to or less than the standard specified in Table 2105.83.1.

The VOC content, minus exempt compounds, of the applied coating, expressed in units of weight of VOC per volume of total nonexempt material, shall be calculated as follows:

VOC =

W_s - W_w - W_ex

V_m - V_w - V_ex

Where:
	VOC	=	VOC content, minus exempt compounds, in pounds (g) VOC/gallons (l) of materials, minus exempt compounds
	W_s	=	Weight of all volatile material in pounds (g), including VOC, water, non-precursor organic compounds and dissolved vapors
	W_w	=	Weight of water in pounds (g)
	W_ex	=	Weight of exempt solvent(s) in pounds (g)
	V_m	=	Volume of total material, as applied in gallons (l)
	V_w	=	Volume of water in gallons (l)
	V_ex	=	Volume of exempt solvent(s) in gallons (l)

The VOC content limits of Subsection B(1)(a) may be met by averaging the VOC content of materials used on a single application unit for each day (i.e., daily within-application unit averaging).

Sampling and testing shall be done in accordance with the procedures and test methods specified in Part G (Methods).

The VOC content limitations based on low-VOC coatings as specified in Table 2105.83.2 of this section, the use of add-on pollution control equipment to meet the VOC content limitations, and the use of an application method specified in Subsection E of this section.

The VOC content, minus exempt compounds, of the applied coating, expressed in units of weight of VOC per volume of total material, shall be calculated as follows:

VOC =

W_s - W_w - W_ex

V_m

Where:
	VOC	=	VOC content, minus exempt compounds, in pounds (g) VOC/gallons (l) of materials
	W_s	=	Weight of all volatile material in pounds (g), including VOC, water, non-precursor organic compounds and dissolved vapors
	W_w	=	Weight of water in pounds (g)
	W_ex	=	Weight of exempt solvent(s) in pounds (g)
	V_m	=	Volume of total material, as applied in gallons (l)

The VOC content limits of Subsection B(2)(a) may be met by averaging the VOC content of materials used on a single application unit for each day (i.e., daily within-application unit averaging).

Sampling and testing shall be done in accordance with the procedures and test methods specified in Part G (Methods).

The overall weight of VOC emitted to the atmosphere is reduced through the use of an oxidizer, adsorber, absorber, concentrator, or another add-on control which is acceptable under § 505-38 (Equivalent compliance techniques). The overall control system, as determined by the test methods and procedures specified in Part G, shall be no less than 90%.

Records. A facility, regardless of the facility's annual emission rate, which contains miscellaneous metal parts and/or plastic parts surface coating processes, shall maintain records sufficient to demonstrate compliance with this section.

At a minimum, a facility shall maintain daily records of the following parameters for each coating and other component as supplied:

The coating, thinner or component name and identification number;

The volume used;

The mix ratio;

The density or specific gravity;

The weight percent of total volatiles, water, and exempt solvents;

The volume percent of total materials, water, and exempt solvents for either Table 2105.83.1 or Table 2105.83.2 for miscellaneous metal parts and/or plastic parts surface coating processes.

The records shall be maintained for two years and shall be submitted to the Department on a schedule reasonably prescribed by the Department.

Exempt solvents. The solvents methyl chloroform (1,1,1-trichloroethane) and methylene chloride are exempt from control under this section. No miscellaneous metal parts and/or plastic parts surface coating processes which seeks to comply with this section through the use of an exempt solvent may be included in any alternative standard approved pursuant to this chapter.

Application techniques. A person may not cause or permit the emission into the outdoor atmosphere of VOCs from the application of miscellaneous metal parts and/or plastic parts surface coatings unless the coatings are applied using one or more of the following application methods:

Airless spraying;

Air-assisted airless spraying;

Electrostatic spraying;

High-volume low-pressure (HVLP) spraying;

Dip coating, including electrodeposition;

Flow coating;

Roll coating;

(8)

Autophoretic coating;

(9)

Zinc-arc spraying;

(10)

Other coating application method that the person demonstrates and the Department determines achieves emission reductions equivalent to HVLP spraying.

Exempt other.

The following shall be exempt from this regulation:

Aerosol coatings;

Architectural coatings;

Automobile refinish coatings;

The coating of bodies and/or body parts for new heavier vehicles where the owner or operator elects to comply with the requirements of § 505-71.2, Control of VOC emissions from automobile and light-duty truck assembly coatings.

The following metal parts coatings and coating operations shall be exempt from the limitations set by Subsection B, and Subsection E, Application techniques, but shall still comply with Subsection H, Housekeeping:

Stencil coatings;

Safety-indicating coatings;

Solid-film lubricants;

Electric-insulating and thermal-conducting coatings;

Magnetic data storage disk coatings;

Plastic extruded onto metal parts to form a coating.

The following plastic parts coatings and coating operations shall be exempt from the limitations set by Subsection B, but shall still comply with Subsection E, Application techniques and Subsection H, Housekeeping:

Touch-up and repair coatings;

Stencil coatings applied on clear or transparent substrates;

Clear or translucent coatings;

Coatings applied at a paint manufacturing facility while conducting performance tests on the coating;

Any individual coating category used in volumes less than 50 gallons in any one year, if substitute compliant coatings are not available, provided that the total usage of all such coatings does not exceed 200 gallons per year, per facility;

Reflective coating applied to highway cones;

(g)

Mask coatings that are less than 0.5 millimeter thick (dried) and the area coated is less than 25 square inches;

(h)

Electromagnetic interference/radio frequency interference (EMI/RFI) shielding coatings;

(i)

Heparin-benzalkonium chloride (HBAC)-containing coatings applied to medical devices, provided that the total usage of all such coatings does not exceed 100 gallons per year, per facility.

The following automotive/transportation and business machine plastic part coatings and coating operations shall be exempt from the limitations set by Subsection B, but shall still comply with Subsection E, Application techniques and Subsection H, Housekeeping:

Texture coatings;

Vacuum metalizing coatings;

Gloss reducers;

Texture topcoats;

Adhesive primers;

Electrostatic preparation coatings;

(g)

Resist coatings;

(h)

Stencil coatings.

The application techniques in Subsection E of this section do not apply to the following:

For metal parts coatings; touch-up coatings, repair coatings, and textured finishes.

For plastic parts coatings; airbrush operations using five gallons or less of coating per year.

For pleasure craft surface coating operations; extreme high gloss coatings.

Emission limitations. For those who elect to adopt the limitation from Subsection B(1), if more than one emission limitation in Table 2105.83.1 for miscellaneous metal parts and/or plastic parts applies to a specific coating, the least stringent emission limitation applies. For those who elect to adopt the limitation from Subsection B(2), if more than one emission limitation in Table 2105.83.2 for miscellaneous metal parts and/or plastic parts applies to a specific coating, the least stringent emission limitation applies.

Housekeeping. The following work practices for cleaning materials apply to the owner or operator of a miscellaneous metal parts and/or plastic parts surface coating processes:

Store all VOC-containing coatings, thinners, coating-related waste materials, cleaning materials and used shop towels in closed containers.

Ensure that mixing and storage containers used for VOC-containing coatings, thinners, coating-related waste materials and cleaning materials are kept closed at all times except when depositing or removing these materials.

Minimize spills of VOC-containing coatings, thinners, coating-related waste materials and cleaning materials, cleaning up spills immediately.

Convey VOC-containing coatings, thinners, coating-related waste materials and cleaning materials from one location to another in closed containers or pipes.

Measurements. Measurements of the volatile fraction of coatings, other than reactive coatings, used at facilities operating miscellaneous metal parts and/or plastic parts surface coating processes shall be performed according to the applicable procedures established in § 505-61 of this chapter.

Table 2105.83.1 Emission Limits of VOCs for Miscellaneous Metal and/or Plastic Surface Coatings
Limits as Applied		Mass of VOC Per Volume of Coating (minus exempt compounds)
Metal Parts and Products VOC Content Limits		Air Dried		Baked
Coating Category		kg/l	lb/gal	kg/l	lb/gal
General one component		0.34	2.8	0.28	2.3
General multicomponent		0.34	2.8	0.28	2.3
Camouflage		0.42	3.5	0.42	3.5
Electric-insulating varnish		0.42	3.5	0.42	3.5
Etching filler		0.42	3.5	0.42	3.5
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		0.74	6.2	0.74	6.2
High temperature		0.42	3.5	0.42	3.5
Metallic		0.42	3.5	0.42	3.5
Military specification		0.34	2.8	0.28	2.3
Mold seal		0.42	3.5	0.42	3.5
Pan backing		0.42	3.5	0.42	3.5
Prefabricated architectural multicomponent		0.42	3.5	0.28	2.3
Prefabricated architectural one component		0.42	3.5	0.28	2.3
Pretreatment		0.42	3.5	0.42	3.5
Repair and touch-up		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
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	0.42	3.5
Drum coating, reconditioned, interior		0.50	4.2	0.50	4.2
Plastic Parts and Products VOC Content Limits
Coating Category		kg/l	lb/gal
General one component		0.28	2.3
General multicomponent		0.42	3.5
Electric dissipating and shock free		0.80	6.7
Extreme performance (two-pack coatings)		0.42	3.5
Metallic		0.42	3.5
Military specification (one-pack coatings)		0.34	2.8
Military specification (two-pack coatings)		0.42	3.5
Mold seal		0.76	6.3
Multicolored coatings		0.68	5.7
Optical coatings		0.80	6.7
Vacuum metalizing		0.80	6.7
Automotive Transportation and Business Machine Plastic Parts VOC Content Limits
Coating Category		kg/l	lb/gal
–Automotive Transportation Coatings¹–
High bake - interior and exterior parts
	Flexible primer	0.54	4.5
	Nonflexible primer	0.42	3.5
	Basecoat	0.52	4.3
	Clearcoat	0.48	4.0
	Nonbasecoat/clearcoat	0.52	4.3
Low bake/air dried - exterior parts
	Primer	0.58	4.8
	Basecoat	0.60	5.0
	Clearcoat	0.54	4.5
	Nonbasecoat/clearcoat	0.60	5.0
Low bake/air dried - interior parts		0.60	5.0
Touch-up and repair		0.62	5.2
–Business Machine Coatings–
Primers		0.35	2.9
Topcoat		0.35	2.9
Texture coat		0.35	2.9
Fog coat		0.26	2.2
Touch-up and repair		0.35	2.9
Pleasure Craft Surface Coating VOC Content Limits
Coating Category		kg/l	lb/gal
Extreme high-gloss topcoat		0.49	4.1
High-gloss topcoat		0.42	3.5
Pretreatment wash primers		0.78	6.5
Finish primer/surfacer		0.42	3.5
High-build primer surfacer		0.34	2.8
Aluminum substrate antifoulant		0.56	4.7
Other substrate antifoulant		0.33	2.8
All other pleasure craft surface coatings for metal or plastic		0.42	3.5
Motor Vehicle Materials VOC Content Limits
Coating Category		kg/l	lb/gal
Motor vehicle cavity wax		0.65	5.4
Motor vehicle sealer		0.65	5.4
Motor vehicle deadener		0.65	5.4
Motor vehicle gasket/gasket sealing material		0.20	1.7
Motor vehicle underbody		0.65	5.4
Motor vehicle truck interior		0.65	5.4
Motor vehicle bedliner		0.20	1.7
Motor vehicle lubricating wax/compound		0.70	5.8

	NOTES:
	¹	For red, yellow, and black automotive coatings, except touch-up and repair coatings, the limit is determined by multiplying the appropriate limit in this section of the table by 1.15.

Table 2105.83.2 Emission Limits of VOCs for Miscellaneous Metal and/or Plastic Surface Coatings with Applicable Add-on Controls
Limits as Applied		Mass of VOC Per Volume Solids
Metal Parts and Products VOC Content Limits		Air Dried		Baked
Coating Category		kg/l	lb/gal	kg/l	lb/gal
General one component		0.54	4.52	0.40	3.35
General multicomponent		0.54	4.52	0.40	3.35
Camouflage		0.80	6.67	0.80	6.67
Electric-insulating varnish		0.80	6.67	0.80	6.67
Etching filler		0.80	6.67	0.80	6.67
Extreme high gloss		0.80	6.67	0.61	5.06
Extreme performance		0.80	6.67	0.61	5.06
Heat resistant		0.80	6.67	0.61	5.06
High performance architectural		4.56	38.0	4.56	38.0
High temperature		0.80	6.67	0.80	6.67
Metallic		0.80	6.67	0.80	6.67
Military specification		0.54	4.52	0.40	3.35
Mold seal		0.80	6.67	0.80	6.67
Pan backing		0.80	6.67	0.80	6.67
Prefabricated architectural multicomponent		0.80	6.67	0.40	3.35
Prefabricated architectural one component		0.80	6.67	0.40	3.35
Pretreatment		0.80	6.67	0.80	6.67
Silicone release		0.80	6.67	0.80	6.67
Solar absorbent		0.80	6.67	0.61	5.06
Vacuum metalizing		0.80	6.67	0.80	6.67
Drum Coating, new, exterior		0.54	4.52	0.54	4.52
Drum Coating, new, interior		0.80	6.67	0.80	6.67
Drum Coating, reconditioned, exterior		0.80	6.67	0.80	6.67
Drum Coating, reconditioned, interior		1.17	9.78	1.17	9.78
Plastic Parts and Products VOC Content Limits
Coating Category		kg/l	lb/gal
General one component		0.40	3.35
General multicomponent		0.80	6.67
Electric dissipating and shock free		8.96	74.7
Extreme performance (two-pack coatings)		0.80	6.67
Metallic		0.80	6.67
Military specification (one-pack coatings)		0.54	4.52
Military specification (two-pack coatings)		0.80	6.67
Mold seal		5.24	43.7
Multicolored coatings		3.04	25.3
Optical coatings		8.96	74.7
Vacuum metalizing		8.96	74.7
Automotive Transportation and Business Machine Plastic Parts VOC Content Limits
Coating Category		kg/l	lb/gal
Automotive Transportation Coatings¹
High bake - interior and exterior parts
	Flexible primer	1.39	11.58
	Nonflexible primer	0.80	6.67
	Basecoat	1.24	10.34
	Clearcoat	1.05	8.76
	Nonbasecoat/ clearcoat	1.24	10.34
Low bake/air dried - interior parts
	Primer	1.66	13.80
	Basecoat	1.87	15.59
	Clearcoat	1.39	11.58
	Nonbasecoat/ clearcoat	1.87	15.59
Low bake/air dried - interior parts		1.87	15.59
Touch-up and repair		2.13	17.72
–Business Machine Coatings–
Primers		0.57	4.80
Topcoat		0.57	4.80
Texture coat		0.57	4.80
Fog coat		0.38	3.14
Touch-up and repair		0.57	4.80
Pleasure Craft Surface Coating VOC Content Limits
Coating Category		kg/l	lb/gal
Extreme high-gloss topcoat		1.10	9.2
High-gloss topcoat		0.80	6.7
Pretreatment wash primers		6.67	55.6
Finish primer/surfacer		0.80	6.7
High-build primer surfacer		0.55	4.6
Aluminum substrate antifoulant		1.53	12.8
Other substrate antifoulant		0.53	4.4
All other pleasure craft surface coatings for metal or plastic		0.80	6.7

	NOTES:
	¹	For red, yellow, and black automotive coatings, except touch-up and repair coatings, the limit is determined by multiplying the appropriate limit in this section of the table by 1.15

§ 505-71.2 Control of VOC emissions from automobile and light-duty truck assembly coatings.

[Added 5-22-2013 by Ord. No. 16-13]

Applicability. Beginning January 1, 2014, this section applies to the owner or operator of an automobile and/or light-duty truck assembly coating operation, where the total actual VOC emissions from all automobile and/or light-duty truck assembly coating operations, including related cleaning activities, at that facility are equal to or greater than 15 pounds (6.8 kilograms) per day or 2.7 tons (2,455 kilograms) per twelve-month rolling period, before controls.

Limitations. A person may not cause or permit the emission into the outdoor atmosphere of VOCs from an automobile and/or light-duty truck assembly coating operation, unless one of the following limitations is met:

The VOC content of each assembly coating process and applied material coating is equal to or less than the standard specified in Table 2105.84.

The VOC content, minus exempt compounds, of the applied coating, expressed in units of weight of VOC per volume of total nonexempt material, shall be calculated as follows:

VOC =

W_s - W_w - W_es

V_m - W_w - W_es

Where:
	VOC	=	VOC content, minus exempt compounds, in pounds (g) VOC/gallons (l) of materials, minus exempt compounds
	W_s	=	Weight of all volatile material in pounds (g), including VOC, water, non-precursor organic compounds and dissolved vapors
	W_w	=	Weight of water in pounds (g)
	W_es	=	Weight of all non-precursor compounds in pounds (g)
	V_m	=	Volume of total material, as applied in gallons(l)
	V_w	=	Volume of water in gallons(l)
	V_es	=	Volume of all non-precursor compounds in gallons (l)

The overall weight of VOC emitted to the atmosphere is reduced through the use of an oxidizer, adsorber, or another add-on control which is acceptable under § 505-38 (Equivalent compliance techniques). The overall control system, as determined by the test methods and procedures specified in Part G, shall be no less than 85%.

Records. A facility, regardless of the facility's annual emission rate, which contains an automobile and/or light-duty truck assembly coating operation, shall maintain records sufficient to demonstrate compliance with this section.

At a minimum, a facility shall maintain daily records of the following parameters for each coating, thinner and other component as supplied:

The coating, thinner or component name and identification number;

The volume used;

The mix ratio;

The density or specific gravity;

The weight percent of total volatiles, water, and exempt solvents;

The volume percent of total solids, water, and exempt solvents for Table 2105.84 automobile and/or light-duty truck assembly coating operation.

The records shall be maintained for two years and shall be submitted to the Department on a schedule reasonably prescribed by the Department.

Exempt solvents. The solvents methyl chloroform (1,1,1-trichloroethane) and methylene chloride are exempt from control under this section. No automobile and/or light-duty truck assembly coating operation which seeks to comply with this section through the use of an exempt solvent may be included in any alternative standard approved pursuant to this chapter.

Housekeeping. The following work practices for cleaning materials apply to the owner or operator of an automobile and/or light-duty truck assembly coating operation:

Store all VOC-containing coatings, thinners, coating-related waste materials, cleaning materials and used shop towels in closed containers.

Ensure that mixing and storage containers used for VOC-containing coatings, thinners, coating-related waste materials, and cleaning materials are kept closed at all times except when depositing or removing those materials.

Minimize spills of VOC-containing coatings, thinners, coating-related waste materials, and cleaning materials, cleaning up spills immediately.

Convey VOC-containing coatings, thinners, coating-related waste materials, and cleaning materials from one location to another in closed containers or pipes.

Minimize VOC emissions from cleaning of application, storage, mixing and conveying equipment by ensuring that equipment cleaning is performed without atomizing the cleaning solvent and all spent solvent is captured in closed containers.

Develop and implement a work practice plan to minimize VOC emissions from cleaning and from purging of equipment associated with all coating operations for which emission limits are specified in this regulation. The plan shall specify practices and procedures to ensure that VOC emissions from the following operations are minimized:

Vehicle body wiping;

Coating line purging;

Flushing of coating systems;

Cleaning of spray booth grates;

Cleaning of spray booth walls;

Cleaning of spray booth equipment;

(g)

Cleaning of external spray booth areas; and

(h)

Other housekeeping measures.

Measurements. Measurements of the volatile fraction of coatings, other than reactive coatings, used at automobile and/or light-duty truck assembly coating facilities shall be performed according to the applicable procedures established in § 505-61 of this chapter.

Table 2105.84 VOC Emission Limits for Automobile and/or Light-Duty Truck Assembly Coatings (pounds VOC per gallon or grams VOC per liter coating solids applied)
Assembly Coating Process	VOC Emission Limit
	lb/gal	g/l
Electodeposition primer operation when solids turnover ratio (R_T)> 0.16 (including application area, spray/rinse stations, and curing oven)	0.7	84
Electodeposition primer operation when 0.040 < (R_T) < 0.16 (including application area, spray/rinse stations, and curing oven)	0.7*350^0.160-R_T	84*350^0.160-R_T
Electodeposition primer operation when (R_T) < 0.040 (including application area, spray/rinse stations, and curing oven)	No VOC emission limit
Primer-surfacer operations (including application area, flash-off area, and oven)	12.0	1,440
Topcoat operations (including application area, flash-off area, and oven)	12.0	1,440
Final repair operations	4.8	580
Combined primer-surfacer and topcoat operations	12.0	1,440

VOC Emission Limits for Miscellaneous Materials Used at Automobile and/or Light-Duty Truck Assembly Coating Facilities (pounds VOC per gallon or grams VOC per of liter coating excluding water and exempt compounds, as applied)
Material	VOC Emission Limit
	lb/gal	g/l
Automobile and light-duty truck glass bonding primer	7.5	900
Automobile and light-duty truck adhesive	2.1	250
Automobile and light-duty truck cavity wax	5.4	650
Automobile and light-duty truck sealer	5.4	650
Automobile and light-duty truck deadener	5.4	650
Automobile and light-duty truck gasket/gasket sealing material	1.7	200
Automobile and light-duty truck underbody coating	5.4	650
Automobile and light-duty truck trunk interior coating	5.4	650
Automobile and light-duty truck bedliner	1.7	200
Automobile and light-duty truck weatherstrip adhesive	6.3	750
Automobile and light-duty truck lubricating wax/compound	5.8	700

§ 505-71.3 Control of VOC emissions from miscellaneous industrial adhesives.

[Added 5-22-2013 by Ord. No. 16-13]

Applicability. Beginning January 1, 2014, this section applies to the owner or operator of a miscellaneous industrial adhesive application process, where the total actual VOC emissions from all miscellaneous industrial adhesives, including related cleaning activities, at that facility are equal to or greater than 15 pounds (6.8 kilograms) per day or 2.7 tons (2,455 kilograms) per twelve-month rolling period, before controls.

Limitations. A person may not cause or permit the emission into the outdoor atmosphere of VOCs from a miscellaneous industrial adhesive process, unless one of the following limitations is met:

The VOC content of each applied adhesive is equal to or less than the standard specified in Table 2105.85.

The VOC content, minus exempt compounds, of the applied adhesive, expressed in units of weight of VOC per volume of total nonexempt material, shall be calculated as follows:

VOC =

W_s - W_w - W_es

V_m - W_w - W_es

Where:
	VOC	=	VOC content, minus exempt compounds, in pounds (g) VOC/gallons (l) of materials, minus exempt compounds
	W_s	=	Weight of all volatile material in pounds (g), including VOC, water, non-precursor organic compounds and dissolved vapors
	W_w	=	Weight of water in pounds (g)
	W_es	=	Weight of all non-precursor compounds in pounds (g)
	V_m	=	Volume of total material, as applied in gallons (l)
	V_w	=	Volume of water in gallons (l)
	V_es	=	Volume of all non-precursor compounds in gallons (l)

The VOC content limits of Subsection B(1)(a) may be met by averaging the VOC content of materials used on a single application unit for each day (i.e., daily within-application unit averaging).

The overall weight of VOC emitted to the atmosphere is reduced through the use of an oxidizer, adsorber, absorber or another add-on control which is acceptable under § 505-38 (Equivalent compliance techniques). The overall control system, as determined by the test methods and procedures specified in Part G, shall be no less than 85%.

A combination of the methods listed in Subsection B(1) and (2).

Records. A facility, regardless of the facility's annual emission rate, which contains miscellaneous industrial adhesive application processes, shall maintain records sufficient to demonstrate compliance with this section.

At a minimum, a facility shall maintain daily records of the following parameters for each adhesive and other component as supplied:

The name and identification number of each adhesive or component;

The volume used;

The mix ratio;

The density or specific gravity;

The weight percent of total volatiles, water, and exempt solvents;

The volume percent of total materials, water, and exempt solvents for Table 2105.85, miscellaneous industrial adhesives.

The records shall be maintained for two years and shall be submitted to the Department on a schedule reasonably prescribed by the Department.

Exempt solvents. The solvents methyl chloroform (1,1,1-trichloroethane) and methylene chloride are exempt from control under this section. No miscellaneous industrial adhesive application process which seeks to comply with this section through the use of an exempt solvent may be included in any alternative standard approved pursuant to this chapter.

Application techniques. A person may not cause or permit the emission into the outdoor atmosphere of VOCs from the application of miscellaneous industrial adhesives unless the adhesives are applied using one or more of the following application methods:

Electrostatic spraying;

High-volume low-pressure (HVLP) spraying;

Flow coating;

Dip coating, including electrodeposition;

Airless spraying;

Air-assisted airless spraying;

Roll coating or hand application, including non-spray application methods similar to hand or mechanically powered caulking gun, brush, or direct hand application;

(8)

Other adhesive application method that the person demonstrates and the Department determines achieves emission reductions equivalent to HVLP spraying.

Exempt other. The following shall be exempt from the limitations set by Subsection B, but shall still comply with the Subsection H, Housekeeping:

Adhesives or adhesive primers being tested or evaluated in any research and development, quality assurance, or analytical laboratory.

Adhesives or adhesive primers used in the assembly, repair, or manufacture of aerospace or undersea-based weapon systems.

Adhesives or adhesive primers used in medical equipment manufacturing operations.

Cyanoacrylate adhesive application processes.

Aerosol adhesive and aerosol adhesive primer application processes.

Processes using polyester bonding putties to assemble fiberglass parts at fiberglass boat manufacturing facilities and at other reinforced plastic composite manufacturing facilities.

Processes using adhesives and adhesive primers that are supplied to the manufacturer in containers with a net volume of 16 ounces or less, or a net weight of one pound or less.

Emission limitations. If an adhesive is used to bond dissimilar substrates together, then the applicable substrate category with the least stringent emission limitation applies.

Housekeeping. The following work practices for cleaning materials apply to the owner or operator of a miscellaneous industrial adhesive application processes:

Store all VOC-containing adhesives, adhesive primers, process-related waste materials, cleaning materials and used shop towels in closed containers.

Ensure that mixing and storage containers used for VOC-containing adhesives, adhesive primers, process-related waste materials, and cleaning materials are kept closed at all times except when depositing or removing those materials.

Minimize spills of VOC-containing adhesives, adhesive primers, process-related waste materials, and cleaning materials, cleaning up spills immediately.

Convey VOC-containing adhesives, adhesive primers, process-related waste materials, and cleaning materials from one location to another in closed containers or pipes.

Measurements. Measurements of the volatile fraction of adhesives, other than reactive adhesives, used at facilities operating miscellaneous industrial adhesive application processes shall be performed according to the applicable procedures established in § 505-61 of this chapter.

Table 2105.85 Emission Limits of VOCs for Miscellaneous Industrial Adhesives
Limits as Applied		VOC Content Minus Exempt Compounds
General Adhesive Application Processes		lb/gal	g/l
	Reinforced plastic composite	1.7	200
	Flexible vinyl	2.1	250
	Metal	0.3	30
	Porous material (except wood)	1.0	120
	Rubber	2.1	250
	Wood	0.3	30
	Other substrates	2.1	250
Specialty Adhesive Application Processes
	Ceramic tile installation	1.1	130
	Contact adhesive	2.1	250
	Cove base installation	1.3	150
	Floor covering installation (indoor)	1.3	150
	Floor covering installation (outdoor)	2.1	250
	Floor covering installation (perimeter bonded sheet vinyl)	5.5	660
	Metal to urethane/rubber molding or casting	7.1	850
	Motor vehicle adhesive	2.1	250
	Motor vehicle weatherstrip adhesive	6.3	750
	Multipurpose construction	1.7	200
	Plastic solvent welding (ABS)	3.3	400
	Plastic solvent welding (except ABS)	4.2	500
	Sheet rubber lining installation	7.1	850
	Single-ply roof membrane installation/repair (except EPDM)	2.1	250
	Structural glazing	0.8	100
	Thin metal laminating	6.5	780
	Tire repair	0.8	100
	Waterproof resorcinol glue	1.4	170
Adhesive Primer Application Processes
	Motor vehicle glass bonding primer	7.5	900
	Plastic solvent welding adhesive primer	5.4	650
	Single-ply roof membrane adhesive primer	2.1	250
	Other adhesive primer	2.1	250

§ 505-71.4 Control of VOC emissions from fiberglass boat manufacturing materials.

[Added 5-22-2013 by Ord. No. 16-13; amended 5-5-2015 by Ord. No. 14-15]

Applicability. Beginning January 1, 2014, this section applies to the owner or operator of a fiberglass boat manufacturing facility, where the total actual VOC emissions from fiberglass boat manufacturing materials, including related cleaning activities, at that facility are equal to or greater than 15 pounds (6.8 kilograms) per day or 2.7 tons (2,455 kilograms) per twelve-month rolling period, before controls. This regulation applies to facilities that manufacture hulls or decks of boats from fiberglass, or build molds to make fiberglass boat hulls or decks. This regulation does not apply to facilities that manufacture solely fiberglass parts of boats such as hatches, seats, lockers, or boat trailers.

Exemptions. This regulation does not extend to surface coatings applied to fiberglass boats, and industrial adhesives used in the assembly of fiberglass boats. Surface coating for fiberglass and metal recreational boats, also called pleasure crafts, are addressed in § 505-71.1, Control of VOC emissions from miscellaneous metal and/or plastic parts surface coating processes. Industrial adhesives used in fiberglass boat assembly are addressed in § 505-71.3, Control of VOC emissions from miscellaneous industrial adhesives.

Limitations. A person may not cause or permit the emission into the outdoor atmosphere of VOCs from fiberglass boat manufacturing materials unless one of the following limitations is met:

Fiberglass boat manufacturing facilities shall use resins and/or gel coats that are equal to or less than the applicable weighted average monomer VOC content limit specified in Table 2105.86 and the non-monomer VOC limit shall not exceed 5%, by weight, of resin and/or gel coat.

The weighted average monomer VOC content shall be calculated as follows:

Table 2105.86
	Σ(M_i * VOC_i)
Weighted Average Monomer VOC Content =
	Σ(M_i)

Where:
	M_i	=	Mass of open molding resin or gel coat i used in the past 12 months in an operation in pounds (kg).
	VOC_i	=	Monomer VOC content, by weight percent, of open molding resin or gel coat i used in the past 12 months in an operation.

Records. A facility, regardless of the facility's annual emission rate, which uses fiberglass boat manufacturing materials, shall maintain records sufficient to demonstrate compliance with this section. At a minimum, a facility shall maintain daily records of:

The following parameters for each material either resin and/or gel as supplied:

The name and identification number of each resin and/or gel;

The volume used;

The mass of materials used;

The monomer VOC content, by weight percent, of resin or gel coat used;

The non-monomer VOC content, by weight percent, of each resin or gel coat.

The records shall be maintained for two years and shall be submitted to the Department on a schedule reasonably prescribed by the Department.

Cleaning material standards. The VOC content of cleaning solvents employed for routine application equipment cleaning shall contain a maximum of 5% VOC, by weight, or have a composite partial vapor pressure of no more than 0.50 mm Hg at 68° F. Only non-VOC solvents shall be used to remove cured resin and gel coat from application equipment.

Work practice standards. All resin and gel coat mixing containers with a capacity equal to or greater than 208 liters (55 gallons), including those used for on-site mixing of putties and polyputties, have a cover with no visible gaps in place at all times. This work practice standard does not apply when material is being manually added to or removed from a container, or when mixing or pumping equipment is being placed in or removed from a container.

Measurements. Measurements of the volatile fraction of resin and gels, used at fiberglass boat manufacturing facilities shall be performed according to the applicable procedures established in § 505-61 of this chapter.

§ 505-72 Gasoline volatility and RFG.

Volatility. Any sampling or testing of gasoline required by § 505-51A shall be performed according to the following methods as specified in Chapter 61 of the Allegheny County Source Testing Manual:

Sampling of gasoline for the purpose of determining compliance with § 505-51A shall be conducted in accordance with 40 CFR Part 80, Appendix D (relating to sampling procedures for fuel volatility).

Testing of gasoline for purposes of determining compliance with § 505-51A shall be conducted in accordance with 40 CFR Part 80, Appendix E (relating to test for determining the RVP of gasoline and gasoline-oxygenate blend).

RFG. RFG shall be certified and tested in accordance with the requirements listed in 40 CFR Part 80, Subpart D (relating to reformulated gasoline) as specified in Chapter 61 of the Allegheny County Source Testing Manual.

§ 505-73 Ambient measurements.

The following methods shall be used to determine concentrations in the ambient air of the air contaminants listed below:

Asbestos. The "aggressive sampling" procedures and the procedures for the measuring of fiber content of a known volume of air collected during a specific period of time in accordance with either, in the sole discretion of the Department:

NIOSH Standard Analytical Method for Asbestos in Air - P&CAM 239;

EPA Method 7400; or

Transmission Electron Microscopy (TEM).

Beryllium: "Air Pollution Measurements of the National Air Sampling Network: Analysis of Suspended Particulates in 1957 -1961," Public Health Service Pub. No. 978, Washington, D.C., 1962.

Carbon monoxide: "Measurement Principle and Calibration Procedure for the Continuous Measurement of Carbon Monoxide in the Atmosphere (Non-Dispersive Infrared Spectrometry)," United States Environmental Protection Agency pursuant to "Ambient Air Monitoring Reference and Equivalent Methods", 40 CFR 53.

Fluorides: "Standard Method of Test for Inorganic Fluoride in the Atmosphere," ASTM Standards on Methods of Atmospheric Sampling and Analysis, Philadelphia, PA 1962, p.67.

Hydrocarbons: "Reference Method for Determination of Hydrocarbons Corrected for Methane," United States Environmental Protection Agency, 40 CFR 50, Appendix E, or equivalent methods, if any, certified by the EPA pursuant to "Ambient Air Monitoring Reference and Equivalent Methods", 40 CFR 53.

Hydrogen sulfide: Jacobs, M.D., et al., "Ultramicrodetermination of Sulfides in the Air," Anal. Chem., 29:1349 (1957).

Lead: "Reference Method for the Determination of Lead in Suspended Particulate Matter Collected from Ambient Air," United States Environmental Protection Agency, 40 CFR 50, Appendix G, or equivalent methods, if any, certified by the EPA pursuant to "Ambient Air Monitoring Reference and Equivalent Methods", 40 CFR 53.

Nitrogen oxides: "Measurement Principle and Calibration Procedure for the Measurement of Nitrogen Dioxide in the Atmosphere (Gas Phase Chemiluminescence)," United States Environmental Protection Agency, 40 CFR 50, Appendix F, or equivalent methods, if any, certified by the EPA pursuant to "Ambient Air Monitoring Reference and Equivalent Methods", 40 CFR 53.

Ozone: "Measurement Principle and Calibration Procedure for the Measurement of Ozone in the Atmosphere," United States Environmental Protection Agency, 40 CFR 50, Appendix D, or equivalent methods, if any, certified by the EPA pursuant to "Ambient Air Monitoring Reference and Equivalent Methods", 40 CFR 53.

PM-10: "Reference Method for the Determination of Particulate Matter as PM-10 in the Atmosphere," United States Environmental Protection Agency, 40 CFR 50, Appendix J, or equivalent methods, if any, certified by the EPA pursuant to "Ambient Air Monitoring Reference and Equivalent Methods," 40 CFR 53.

Settled particulates: "Recommended Standard Method for Continuing Dust Fall Survey (APM- 1 Revision 1)," TR-2 Air Pollution Measurements Committee, J. Air. Poll. Control Assoc., 16:372 (1966).

Sulfates:

Sampling method: "Air Pollution Measurements of the National Air Sampling Network: Analysis of Suspended Particulates 1957 - 1961," Public Health Service Pub. 978, Washington, D.C. 1962.