Northern Sierra AQMD Rule 228 - 1 Amend ed 4/25/11

2/22/10 Rules & Regulations Rule 228 Surface Coating of Metal Parts and Product s

Part 1.0 General

1.1 Applicability Provisions of this Rule shall apply to surface coat ing of metal parts and products in portions of the Northern Sierra Air Quality Mana gement District that are designated as Non-attainment for any federal ambien t air quality standard for

ozone (per 40 CFR 81.305)

.

1.2 Exemptions 1.2.1 Requirements of this Rule, except for Subsect ion 4.2 (Record Keeping)

, shall not apply to coating operations at facilitie s where total uncontrolled facility VOC emissions (excluding exem pt compounds) from use of all coatings does not exceed 2.7 tons per ro lling 12-month period (average of 15 pounds per day). 1.2.2 Requirements of Subsection 3.3 (Application E quipment Requirements) of this Rule shall not apply to touch -up, repair, textured finishing or stenciling of identification numbers a nd letters, although VOC limits and work practices specified herein shall ap ply to such coatings. 1.2.3 Requirements of this Rule shall not apply to coating of automobiles, light duty trucks, mobile equipment, aircraft, aero space vehicles, marine vessels, cans, coils, magnetic wire, or magnetic da ta storage disks, or to coating with polyester resins, aerosol coatings or powder coatings. 1.2.4 VOC limits and application methods specified herein shall not apply to graphic arts printing and coatings, stencil coat ings, safety-indicated coatings, solid-film lubricant coatings, electric-i nsulating and thermalconducting coatings, or plastic extruded onto metal parts to form a coating, although work practices specified herein s hall apply to such coatings. 1.2.5 Up to 55 gallons of coatings exceeding the VO C content limits specified in section 3.1 and 3.2.1 may be used by a facility (including all units at that facility) per rolling twelve-month pe riod. 1.2.6 The provisions of this rule shall not apply t o stripping of cured coatings, cured adhesives, and cured inks, except t he stripping of such materials from spray application equipment.

1.3 Effective Date This regulation shall become effective July 1, 2010.2011. Until the effective date, the previously adopted version of Rule 228 shall re main effective.Northern Sierra AQMD Rule 228 - 2 Amend ed 4/25/11

2/22/10 Rules & Regulations Part 2.0 Definitions

Air Dried Coating : A coating that is cured at a temperature below 1 94 degrees F (90 degrees C).

APCO : Air Pollution Control Officer or Executive Direc tor of the Northern Sierra Air Quality Management District, or an authorized r epresentative thereof.

ARB : California Air Resources Board.

Baked Coating : A coating that is cured at a temperature at or a bove 194 degrees F (90 degrees C).

Camouflage Coating : A coating used to conceal items or equipment fro m visual

detection.

Clear Coating : A coating that either lacks color and opacity, o r is transparent, and uses the surface to which it is applied as a re flective base or undertone

color.

Control Device : Equipment such as an incinerator or absorber use d to prevent air pollutants from reaching the ambient air.

Dip Coat : A coating method which is applied by dipping an object into a vat of coating material and allowing any excess coating ma terial to drain off.

Drum Coating : A coating used on a metal drums having a capacit y ranging from 12 to 110 gallons.

Electrostatic Application : The electrical charging of atomized coating drop lets for deposition by electrostatic attraction.

Emission Control System : A control device and its associated collection

system.

Electric-Insulating Varnish : A non-convertible-type coating applied to electr ic motors, components of electric motors, or power tra nsformers, to provide electrical, mechanical, and environmental protectio n or resistance.

EPA : United States Environmental Protection Agency.

Etching Filler : A coating that contains less than 23 percent sol ids by weight and at least 1/2-percent acid by weight, and is used in stead of applying a pretreatment coating followed by a primer.Northern Sierra AQMD Rule 228 - 3 Amend ed 4/25/11

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Exempt Compounds : Any compound specifically excluded from the defi nition of Volatile Organic Compound (VOC) in the Federal Regi ster, codified at 40 CFR Part 51.100(s), as having negligible atmospheric photochemical reactivity.

Extreme High-Gloss Coating : A coating which, when tested by the American Society for Testing Material (ASTM) Test Method D

- 523 (Standard Test Method for Specular Gloss, 2008),1980), shows a reflectance of 75 or more on a 60°

meter.

Extreme-Performance Coating : A coating that is used on a metal surface

where the coating is, in its intended use, exposed to any of the following: Industrial-grade detergents, cleaners, abrasive sco uring agents, solvents, strong chemical agents or petrochemical materials; unprote ctedcoated surface, in it’s intended use, is acutely or chronically exposed to salt water, corrosives, caustics, acids, oxidizing agents, wind or ocean driven debri s, electromagnetic pulse or

temperatures shipboard conditions; water, waste water or sewage; or other extreme environmental conditions (as determined by the APCO).exceeding

250 ° F.

Flow Coat : A non-atomized technique of applying coatings to a substrate with a fluid nozzle in a fan pattern with no air supplied to the nozzle.

Heat-Resistant Coating : A coating that must withstand a temperature of a t least 400°F during normal use.

High-Performance Architectural Coating : A coating used to protect architectural subsections and which meets the requirements of the Architectural Aluminum Manufacturer Association's p ublication number AAMA 2604-05 (Voluntary Specification, Performance Requi rements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels) or 26 05 -05 (Voluntary Specification, Performance Requireme nts and Test Procedures for Superior Performing Organic Coa tings on Aluminum Extrusions and Panels).

High Temperature Coating : A coating that is certified to withstand a temperature of 1000 degrees F (538 degrees C) for 2 4 hours.

High-Volume, Low-Pressure Application (HVLP) : Spray equipment which is designed to operate and is operated using a high vo lume of air delivered at atomized air pressures between 0.1 to 10.0 psig mea sured dynamically at the center of the air cap and at the air horns and whic h operates at a maximum fluid delivery pressure not exceeding the manufacturer's recommended inlet air

pressure.

Metal Parts and Products : Any metal parts or products except for those sub ject to coating requirements of other source-specific ru les.Northern Sierra AQMD Rule 228 - 4 Amend ed 4/25/11

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Metallic Coating : A coating which contains more than 5 grams of me tal particles per liter of coating as applied. “Metal p articles” are pieces of a pure

elemental metal or a combination of elemental metal s.

Military Specification Coating : A coating which has a formulation approved by a United States Military Agency for use on military equipment.

Mold-Seal Coating : The initial coating applied to a new mold or rep aired mold and associated tooling to provide a smooth surface which, when coated with a mold release coating, prevents products from sticki ng to the mold or to the tooling.

Multi-Component Coating : A coating requiring the addition of a separate reactive resin, commonly known as a catalyst or har dener, before application to form an acceptable dry film.

One-Component Coating : A coating that is ready for application as it co mes out of its container to form an acceptable dry film . A thinner, necessary to reduce the viscosity, is not considered a component.

Pan Backing Coating : A coating applied to the surface of pots, pans, or other cooking implements that are exposed directly to a f lame or other heating

elements.

Powder Coating : Any coating applied as a dry (without solvent or other carrier) finely divided solid, which when melted and fused, adheres to the substrate as a paint film.

Prefabricated Architectural Component Coating : Any coating applied to metal parts and products which are intended for use as components of

architectural structures.

Pretreatment Coatings : Any coating, including wash primer, which contai ns no more than 12 percent solids by weight, and at least 1⁄2-percent acid, by weight, is used to provide surface etching, and is applied dir ectly to metal surfaces to provide corrosion resistance, adhesion, and/or ease of stripping.

Repair Coating : Recoating portions of previously coated product due to mechanical damage to the coating following normal p ainting operations.

Roll Coater : A series of one or more mechanical rollers that formsoperating via

the formation of a thin coating film on the surface of the roller (s) , which is applied to a substrate by moving the substrate underneath t he roller (s)

.Northern Sierra AQMD Rule 228 - 5 Amend ed 4/25/11

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Silicone-Release Coating : Any coating which contains silicone resin and is intended to prevent food from sticking to surfaces such as baking pans.

Solar-Absorbent Coating : A coating which has as its prime purpose the absorption of solar radiation.

Stripping : The use of solvent to remove material such as cu red adhesives, cured inks, cured or dried paint, cured or dried p aint residue or temporary protective coating.

Touch-Up Coating : Any coating used to cover minor coating imperfec tions appearing after the main coating operation.

Transfer Efficiency : The ratio of the weight of coating solids which adhere to the object being coated to the weight of coating so lids used in the application process, expressed as a percentage.

Vacuum-Metalizing Coating : The undercoat applied to the substrate on which the metal is deposited or the overcoat applied dire ctly to the metal film.

Volatile Organic Compound (VOC) : As defined in the Federal Register and codified at 40 CFR Part 51.100(s).

Zinc Filled Primer : Any coating which has an elemental zinc content of not less than 240 grams/liter (2.0 pounds/gallon) of coating as applied.Northern Sierra AQMD Rule 228 - 6 Amend ed 4/25/11

2/22/10 Rules & Regulations Part 3.0 Requirements

3.1. VOC Content Limits Except as provided in Subsection 3.2, no person sha ll apply to any metal part or product any coating with a VOC content in excess of the following limits as applied:

VOC Content Limits (Weight of VOC per Volume of Coa ting,

Less Water and Exempt Compounds)

Air Dried Air Dried Baked Baked Coating Category kg VOC/l lb VOC/gal kg VOC/l lb VOC/gal General Use, One-Component 0.34 2.8 0.28 2.3 General Use, Multi-Component 0.34 2.8 0.28 2.3 Camouflage 0.42 3.5 0.42 3.5 Electric-Insulating Varnish 0.34 2.8 0.28 2.3 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 0.42 3.5 0.42 3.5 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 Prefab Architectural Multi-Component 0.42 3.5 0.28 2.3 Prefab Architectural One-Component 0.42 3.5 0.28 2.3 Pretreatment Coatings 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 4.2Northern Sierra AQMD Rule 228 - 7 Amend ed 4/25/11

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3.2 Alternate Emissions Control 3.2.1 Emission Rate Limitation: In lieu of complyi ng with VOC content limits specified in Subsection 3.1, the following a fter-control weight-pervolume emission rates constitute compliance with th is rule.

VOC Emission Rate Limits (VOC Weight Per Volume Of Solids)

Air Dried Air Dried Baked Baked Coating Category kg VOC/l lb VOC/gal. kg VOC/l lb VOC/gal. General Use, One-Component 0.54 4.52 0.40 3.35 General Use, Multi-Component 0.54 4.52 0.40 3.35 Camouflage 0.80 6.67 0.80 6.67 Electric-Insulating Varnish 0.54 4.52 0.40 3.35 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 0.80 6.67 0.80 6.67 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 Prefab Architectural Multi-Component 0.80 6.67 0.40 3.35 Prefab Architectural One-Component 0.80 6.67 0.40 3.35 Pretreatment Coatings 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

3.2.2 In lieu of complying with VOC content limits specified in Subsection 3.1 or the emission rate limitation in 3.2.1, air p ollution control equipment with a VOC capture and control efficiency of at lea st 90% may be used in

accordance with the manufacturer’s recommendations at all times while applying non-exempt coatings and thinners, and whil e using solvents for cleaning, provided that the facility holds a valid Authority to Construct or Permit to Operate issued by the APCO.Northern Sierra AQMD Rule 228 - 8 Amend ed 4/25/11

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3.3 Application Methods No person shall coat any metal part or product subj ect to provisions of Subsection 3.1 or 3.2.1 (but not 3.2.2) unless one or more of the following methods is used in accordance with equipment manufa cturer's recommendations: electrostatic application, High Vo lume Low Pressure (HVLP) spray, flow coat, roller coat,roll coater, dip coat (including electrodeposition), a system that atomizes principally by hydraulic press ure such as airless

spray,spray or

air-assisted airless spray, or another application technology achieving a greater transfer efficiency than HVLP.

3.4 Work Practices for Solvent Cleaning The following VOC limits and work practices shall a pply to cleaning of spray guns, lines, tanks, floors and spray booths, as wel l as to cleaning and surface preparation of manufactured parts and products and other cleaning related to activities that are subject to the provisions of th is Rule. This subsection does not apply to cleaning of solar cells, laser equipment, electrical and electronic components, scientific instruments, precision optic s or application equipment for resins, inks or adhesives; or to small-scale (as de termined by the APCO) activities undertaken exclusively for research, pro duct development, performance testing or quality assurance testing; or to the use of pretreatment coatings; or where the capture and control efficiency option in 3.2.2 is employed.

3.4.1 Surface Cleaning and Cleaning of Coatings App lication Equipment: Solvents used for surface cleaning of parts and coa tings application equipment shall comply with at least one of the fol lowing limits: a. Solvent shall have a VOC content of 25 grams or less per liter (0.21 lb/gal) of material; or b. Solvent shall have a VOC composite partial press ure of 8 mm Hg or less at 20°C (68°F). 3.4.2 Work Practices for Cleaning -- Devices and Me thods: No person shall perform solvent cleaning operations unless th e solvent is not atomized during the process and all spent solvent i s captured and kept in closed containers. The following cleaning devices or methods may be

used: a. Wipe Cleaning. b. Spray bottles or containers with a maximum capac ity of 16 fluid ounces from which solvents are applied without a pr opellant

induced force or atomization of the contents

. c. Cleaning equipment having a closed solvent conta iner during cleaning operations, except when depositing and rem oving objects to be cleaned, and closed during non-operation exce pt during maintenance and repair of the cleaning equipment it self.

d. Remote reservoir cold cleaner operated in conforman ce with Rule

229.

e. System totally enclosing guns, cups, nozzles, bowl s, and other parts during washing, rinsing, and draining procedu res.Northern Sierra AQMD Rule 228 - 9 Amend ed 4/25/11

2/22/10 Rules & Regulations f.e. Non-atomized solvent flow method collecting cleani ng solvent in a container or a collection system closed except fo r solvent collection openings and, if necessary, openings to avoid excessive pressure build-up inside the container. g.f. Solvent flushing method discharging solvent into a closed container, except for solvent collection openings a nd, if necessary, openings to avoid excessive pressure build-up insid e the container. Discharged solvent from such equipment shall be col lected in containers without atomizing into open air. Solvent may be flushed through the system by air or hydraulic pressure, or by pumping.

3.5 Work Practices for Transfer, Storage and Dispos al Regardless of VOC content, all VOC-containing coati ngs, thinners, solvents, waste materials and used clean-up media (such as ra gs and other absorbent materials) shall be stored, transferred and transpo rted in non-absorbent, nonleaking containers which shall be kept closed at al l times except when filling, using, emptying, mixing, pumping or otherwise activ ely working with the VOCcontaining substances. These materials shall not b e disposed of through heating, emptying into a non-airtight container suc h as a trash can or dumpster, or otherwise allowed to evaporate. General work pr actices intended to prevent spillage (such as avoiding practices that allow mat erials to run down the outside of a drum or can and keeping containers where they are not likely to be knocked over) shall be employed.

3.6 Prohibition of Specification No person shall solicit or require for use or speci fy application of a coating on metal parts and products if such use or application results in a violation of provisions of this Rule. This prohibition shall app ly to all written or oral contracts under terms of which any coating subject to provisi ons of this Rule is to be applied to any metal part or product.

Part 4.0 Administrative Requirements

4.1 Labeling Requirements 4.1.1 VOC Content: Each container (or accompanying data sheet) of any coating subject to this Rule shall display maximum VOC content of the coating as applied, including coating components, a nd after any thinning as recommended by the manufacturer. VOC content sha ll be displayed as grams of VOC per liter less water and exempt compou nds. VOC content displayed shall be determined using Subsection 5.1. test methods or calculated using product formulation data. 4.1.2 Thinning Recommendations: Each container (or accompanying data sheet) of any coating subject to this Rule shall di splay a statement of manufacturer's recommendation regarding thinning of the coating. This requirement shall not apply to thinning of coatings with water.Northern Sierra AQMD Rule 228 - 10 Amen ded 4/25/11

2/22/10 Rules & Regulations

4.2 Record Keeping Requirements Any person subject to Section 3 or exempt by Subsec tion 1.2.1 shall maintain and have available for inspection:

A current list of VOC containing products in use co ntaining all data necessary to evaluate compliance, including the following inform ation, as applicable: 4.2.1 Product name, type and manufacturer. 4.2.2 Application method. 4.2.3 Usage instructions. 4.2.4 Mixing instructions. 4.2.5 Maximum VOC content of coating as applied, in cluding thinning

solvents, hardeners and other additives, and exclud ing water and exempt compounds. 4.2.6 Coating composition and density.

Monthly coating and solvent use records, including the following information for

each: 4.2.7 Volume and mix ratio of each component used. 4.2.8 VOC content in grams/liter (or pounds/gallon) as applied/used. 4.2.9 Volume applied/used in liters (or gallons).

Capture and control equipment records, if applicabl e, including: 4.2.10 Make, model and description of capture and c ontrol equipment, along with manufacturer’s instructions and operatio n recommendations. 4.2.11 System operating parameters, including times of operation, adequate to demonstrate compliance with this Rule. 4.2.12 Records of all control system maintenance (s uch as repairs and filter changes), including device, date performed, and description.

All records shall be retained and made available fo r inspection by the APCO,

ARB orand EPA for at least three years.

Part 5.0 Test Methods The following test methods shall be used to determi ne compliance with the provisions of this rule if testing is required by the APCO, ARB o r EPA. Alternate test methods may be used provided they are approved by the APCO, ARB and EPA. A violation determined by any applicable test method below shal l constitute a violation of this Rule.

5.1 Analysis of Samples VOC content of coating materials covered by this Ru le shall be determined by U.S. EPA Method 24 ( Determination of Volatile Matter Content, Water Con tent, Density, Volume Solids, and Weight Solids of Surfac e Coatings, 40 CFR 60, Appendix A -7 ) or by manufacturer’s formulation data (MSDS sheet ). In case of a discrepancy between these approaches, U.S. EPA Meth od 24 shall take precedence unless it is demonstrated that manufactu rer’s data are correct.Northern Sierra AQMD Rule 228 - 11 Amen ded 4/25/11

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Analysis of halogenated exempt compounds in coating s shall be performed using

ARB Method 432 (Exempt Halogenated VOC in Liquids, September 12, 1 989). (Determination of Dichloromethane and 1,1,1-Trichlo roethane in Paints and Coatings).

5.2 Determination of Emissions Emissions of VOC shall be measured by EPA Method 25, 25A or 25B (4025 (Determination of Total Gaseous Nonmethane Organic Emissions as Carbon, 40 CFR 60, Appendix A), 25A (Determination of Total Gaseous Organic Concentration Using a Flame Ionization Analyzer, 40 CFR 60, Appendix A), A7),or 25B (Determination of Total Gaseous Organic C oncentration Using a Nondispersive Infrared Analyzer, 40 CFR 60, Appendi x A), as applicable. Analysis of halogenated exempt compounds in emissio ns shall be performed using ARB Method 422 (Exempt Halogenated VOCs in Gases, September 12, 1990). (Determination of Volatile Organic Compounds in Emi ssions from Stationary Sources).

5.3 Determination of Capture and Control Efficiency The capture efficiency of a VOC emission control sy stem’s collection device shall be determined according to EPA’s “Guidelines for De termining Capture Efficiency,” January 9, 1995 and the following EPA Test Methods, as applicable,

contained in 40 CFR 51, Appendix M: Method 204A (Volatile Organic Compounds Content in Liquid Input Stream), 204B (V olatile Organic Compounds Emissions in Captured Stream), 204C (Vola tile Organic Compounds Emissions in Captured Stream ((Dilution Technique)) ), 204D (Volatile Organic Compounds Emissions in M, Methods 204-204F, as appl icable.Uncaptured Stream from Temporary Total Enclosure), Method 204E (Volatile Organic Compounds Emissions in Uncaptured Stream from Build ing Enclosure), 204F (Volatile Organic Compounds Content in Liquid Input Stream ((Distillation Approach))). The control efficiency of a VOC emission control system’s VOC control device shall be determined using EPA Method 2, 2A, or 2D (402 (Determination of Stack Gas Velocity and Volumetric Flow Rate ((Type S Pitot Tube)), 40 CFR 60, Appendix A), 2A (Direct Measurement of Gas Volume Through Pipes and Small Ducts, 40 CFR A-1)60, Appen dix A), or 2D (Measurement of Gas Volume Flow Rates in Small Pipe s and Ducts, 40 CFR 60, Appendix A), as applicable, for measuring flow rates and EPA Method 25, 25A or 25B (40Methods 25 (Determination of Total Gaseous N onmethane Organic Emissions as Carbon, 40 CFR 60, Appendix A), A-7),25A (Determination of Total Gaseous Organic Concentration Using a Flame Ionizat ion Analyzer, 40 CFR 60, Appendix A), or 25B (Determination of Total Gaseous Organic Concentration Using a Nondispersive Infrared Analyzer, 40 CFR 60, Appendix A), as applicable, for measuring total gaseous organic concentrations at the inlet and outlet of the control device. EPA Method 18 ( Measurement of Gaseous Organic Compound Emissions By Gas Chromatography, 40 CFR 60, Appendix A -6 ) or ARB Method

422 (Determination of Volatile Organic Compounds in Emi ssions from StationaryNorthern Sierra AQMD Rule 228 - 12 Amen ded 4/25/11

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(Exempt Halogenated VOCs in Gases, September 12, 19 90)Sources) shall be used to determine the emissions of exempt compounds

.

5.4 Quantification of Metal Content in Coatings The quantification of metal content, for purposes o f determining coating definitions or applicability of this Rule, shall be determined by South Coast Air Quality Management District Method 318-95 (Determin ation of Weight Percent Elemental Metal in Coatings by X-Ray Diffraction Diffraction). Method, July 1996).

5.5 Measurement of Acid Content

Acid content of Pre-Treatment Wash Primerspre-treatment wash primer s and etching fillers shall be conducted and reported in accordance with ASTM D1613 (Standard Test Method for Acidity in Volatile Solve nts and Chemical Intermediates used in Paint, Varnish, Lacquer, and Related Products, 2006).1996).

5.6 Demonstration of Transfer Efficiency Transfer efficiency shall be demonstrated using Sou th Coast Air Quality Management District Method TE ( Procedure for Testing Spray Equipment

Transfer Efficiency, May 24, 1989).Efficiency Test Procedure for Equipment User).

5.7 Determination of VOC Composite Partial Pressure s VOC composite partial pressures shall be determined using either manufacturer's information regarding formulation or using ASTM met hods E168 (Standard Practices for General Techniques of Infrared Quanti tative Analysis, 2006),1992), E169 (General Techniques of Ultraviolet Quantitativ e Analysis, EPA-approved 1993) or E260 (Standard Practice for Packed Column Gas Chromatogr aphy, 2006)(General Gas Chromatography Procedures, 1996) for determination of mole fractions and then summing products of each VO C component's vapor pressure and its mole fraction. For materials conta ining no non-VOC components, VOC composite partial pressure can be m easured directly by ASTM Method D2879 (Standard Test Method for Vapor P ressure-Temperature Relationship and Initial Decomposition Temperature of Liquids by Isoteniscope, 2007).1997).

5.8 Determination of VOC Emissions From Spray Gun C leaning Systems VOC emissions from spray gun cleaning systems shall be quantified using South Coast Air Quality Management District Method CS (So lvent Losses from Spray Gun Cleaning Systems , October 3, 1989 ).

Part 6.0 Compliance Schedule

6.1 Existing SourcesNorthern Sierra AQMD Rule 228 - 13 Amen ded 4/25/11

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Any person becoming subject to requirements of this Rule by loss of exemption shall comply with the following increments of progr ess: 6.1.1 Within 6 months from date exemption is lost, submit a complete Authority to Construct application for control equi pment, if necessary. 6.1.2 Within 12 months from date exemption is lost, be in full compliance with all requirements of this Rule.

6.2 New Sources Any new proposed surface coating of metal parts or products operation not exempt by Section 1.2 shall demonstrate its ability to comply with the requirements of this Rule prior to issuance of an A uthority to Construct permit.