SAN JOAQUIN VALLEY UNIFIED AIR POLLUTION CONTROL DISTRICT

RULE 4605 - AEROSPACE ASSEMBLY AND COMPONENT CO ATING OPERATIONS (Adopted December 19, 1991)(Amended May 21, 1992; December 17, 1992; March 31, 1993; February 17, 1994; December 19, 1996; December 20, 2001; September 20, 2007)

1.0 Purpose

The purpose of this rule is to limit the emissions of volatile organic compounds (VOCs) from aerospace coatings and adhe sives, from the organic solvent cleaning, and the storage and disposal of solvents and waste solvent ma terials associated with the use of aerospace coatings and adhesives and to provide the administrative requirements for recording and measuring the emissions.

2.0 Applicability

This rule shall apply to the manufacturing, assembling, coat ing, masking, bonding, paint stripping, surface clean ing, service, and main tenance of aerospace co mponents, the cleanup of equipment, and the storage and disposal of solvents and waste solvent materials associated with these operations.

3.0 Definitions

3.1 Adhesion Promoter: a co ating applied to a substrate in a monomolecular thickness to promote wetting and form a chemical bond with the s ubsequently applied
material.

3.2 Adhesive: a substance that is us ed to bond one surf ace to another.

3.3 Adhesive Bonding Primer: a coating applied in a very thin film to aerospace
adhesive bond detail co mponents for corrosion inhibition an d adhesion.

3.4 Aerosol Coating: a mixture of pigments , resins, and liquid and gaseous solvents and propellants packaged in a disposable container for hand-held application.

3.5 Aerospace Component: any raw material , partial or complete d fabricated part, assembly of parts, or completed unit of any aircraft, helicopter, missile, or space vehicle, including mo ckups and prototypes.

3.6 Aerospace Material: any co ating, primer, adhesive, seal ant, maskant, lubricant, stripper or hand-wipe cleaning or clean -up solvent used during the manufacturing, assembly, refinishing, maintenance or se rvice of an aerospace component.

3.7 Antichafe Coating: a coating applied to areas of moving aerospace components which may rub during normal operation.

SJVUAPCD 4605 -1 9/20/20073.8 Anti-wicking Wire Coating: the outer coating of a wire which prevents fluid wicking into the insu lation of the wire.

3.9 APCO: as defined in Rule 1020 (Definitions).

3.10 ARB: California Air Resources Board.

3.11 ASTM: American Society for Testing and Materials.

3.12 Barrier Coating: a coating applied in a thin film to fastener s to inhibit dissimilar
metal corrosion and to prevent galling.

3.13 Brush Coating: manual application of coatings using brushes and rollers.

3.14 Chemical Milling: the removal of meta l by chemical action of acids or alkalis.

3.15 Clear Topcoat: a clear or semi-transpa rent coating applied over a primer for purposes such as appearance, identification, or protection.

3.16 Coating: a material applied onto or impregnated into a substrate for protective, decorative, or functional purpos es. Such materials includ e, but are not limited to, paints, varnishes, sealers, and stains.

3.17 Commercial Exterior Aerodynamic Stru cture Primer: a prim er utilized for the purpose of extended corrosion protection, wh ich is only used on the exterior of passenger and cargo doors, supporting door structures, aerodynamic components,
and structures of commercial aircraft whic h protrude from the fuselage, such as wings and attached components, control su rfaces, horizontal stabiliz er, vertical fins, wing-to-body fairings, antennae, la nding gear and landing gear doors.

3.18 Conformal Coating: a coa ting applied to electrical conduc tors and circuit boards to protect them against electrical discharge damage and/or corrosion.

3.19 Composite Partial Pressure: the su m of the partial pressures of the VOC compounds in a solvent. The VOC composite partial pressure is calculated as
follows:



# ∑ ∑ ∑

= = =



### + + = k

1 n

1i i i

e e

w w n

1i i ii

c



### MW W

MW

W

MW

W MW ))(VP(W

PP

e

Where:

W i = Weight of the “i”th VOC compound, in grams

W
w = Weight of water, in grams

W
e = Weight of exempt compound, in grams

SJVUAPCD 4605 -2 9/20/2007MW i = Molecular weight of the “i”th VOC compound, in grams per gram-mole

MW
w = Molecular weight of wate r, in grams per gram-mole

MW
e = Molecular weight of the “e”th exempt compound, in grams per gram-mole

PP
c = VOC composite partial pressure at 20 o C (68 o F), in mm Hg

VP i = Vapor pressure of the “i”th VOC compound at 20 o C (68 o F), in mm Hg

3.20 Decorative Laminate Primer: an adhesive bonding primer which is applied to a
substrate to enhance adhesion between the decorative laminate and the subsequently applied substrate, and is cured at a maximum temperature of 250°F.

3.21 Dip Coating: the proce ss in which a substrate is immersed in a solution (or dispersion) containing the co ating and then withdrawn.

3.22 Dry Lubricative Coating: a coating consisting of lauric ac id, cetyl alcohol, waxes, or
other non-cross linked or re sin-bound materials which ac t as a dry lubricant or protective coat.

3.23 Electric-effect Coating: an electrically-conductive coating.

3.24 Electrodeposition: a dip coating applica tion method where the paint solids are given an electrical charge which is th en attracted to a substrate.

3.25 Electronic Wire Coating: the outer el ectrical insulation coa ting applied to tape insulation of a wire specifically form ulated to smooth and fill edges.

3.26 Electrostatic Application: a sufficient ch arging or atomized paint droplets to cause deposition principally by elec trostatic attraction. This application shall be operated at a minimum 60 KV power.

3.27 EPA: United States Envi ronmental Protection Agency.

3.28 Epoxy Based Fuel Tank Coating: a coat ing which contains epoxy resin that is applied to integral fuel tank components of aircraft to protect the fuel tank from corrosion and the by-products of bacterial growth.

3.29 Fastener Sealant: a seal ant applied to a device used to join two or more parts together.

3.30 Fire Resistant Coating - Civilian (interior): a cabin interior coating that passes
Federal Aviation Administration standards using the Ohio State University Heat Release, Fire and Burn Tests.

SJVUAPCD 4605 -3 9/20/20073.31 Flight Test Coating: a coa ting applied to an aircraft prio r to flight test ing to protect the aircraft from corrosion and to prov ide required marking during flight test
evaluation.

3.32 Flow Coating: a coating application system with no ai r supplied to the nozzle and where paint flows over the pa rt and the excess coating dr ains back into a collection
system.

3.33 Fuel Tank Adhesive: an adhesive used to bond components continuously exposed to fuel and which must be compatible with and used with fu el tank coatings.

3.34 Fuel Tank Coating: a coa ting applied to the interior of a fuel tank or areas of an
aircraft that are continuous ly wetted by fuel to prot ect it from corrosion and/or bacterial growth.

3.35 Grams of VOC per Liter of Coating, Less Water and Exempt Compounds: the weight of VOC content per combined volu me of VOC and coatin g solids and can be calculated by the following equation:

Grams of VOC per liter of coating, less water and = Ws - Ww - Wec exempt compounds Vm - Vw - Vec

Where, Ws = weight of vola tile compounds (grams) Ww = weight of water (grams) Wec = weight of exempt compounds (grams) Vm = volume of material (liters) Vw = volume of water (liters) Vec = volume of exempt compounds (liters)

3.36 Grams of VOC per Liter of Material: the weight of VOC per volume of material and can be calculated by the following equation:

Grams of VOC per liter of ma terial = Ws - Ww - Wec

Vm Where, Ws = weight of vola tile compounds (grams) Ww = weight of water (grams) Wec = weight of exempt compounds (grams) Vm = volume of material (liters)

3.37 Hand Application Methods: the application of coatings , sealants, or adhesives, by non-mechanical hand-held equipment includ ing but not limited to paint brushes, hand rollers, caulking guns, trowels, spatulas, syringe daubers, rags and sponges.

SJVUAPCD 4605 -4 9/20/20073.38 High Temperature Coating: a coating that is certified to withstand temperatures of

more than 350 ° F.

3.39 High-Volume, Low-Pressure (HVLP) Spray Equipment: equipment used to apply materials by means of a spray gun which is designed and intended to be operated, and which is operated, between 0.1 and 10.0 psig of air atomizi ng pressure measured dynamically at the center of the air cap and at the air horns, measured dynamically at the center of the air cap and the air horns.

3.40 Impact Resistant Coating: a flexible coating that protects aerospace components, such as aircraft landing gear, and landing gear compartments, and other surfaces subject to abrasive impacts from runway debris.

3.41 Liquid Leak: a visible solv ent leak from a container at a rate of more than three drops per minute, or a visible liquid mist.

3.42 Long Term Adhesive Bonding Primer (M etal to Structural Core Bonding): an adhesive bonding primer that has met the aircraft manuf acturers’ required performance characteristics following 6000 hours testing, used for metal to structural core bonding, and with an adhesi ve that is specified to be cured at

350 o F ± 10 ° F.

3.43 Maskant for Chemical M illing: a coating applied directly to an aerospace component to protect surface areas wh en chemical milling such component.

3.44 Non-Absorbent Container: a container ma de of non-porous material that does not allow the migration of solvents through it.

3.45 Non-Leaking Container: a container without liquid leak.

3.46 Non-Structural Adhesive: an adhesive that bonds non-load carrying aircraft component in non-critical applications.

3.47 Normal Business Hours: Monday through Friday, 8:00 am to 5:00 pm.

3.48 Optical Anti-Reflective Coa ting: a coating with a low re flectance in the infrared and visible wavelength range and is used for an ti-reflection on or near optical and laser
hardware.

3.49 Organic Solvent: the same as “Solvent.”

3.50 Organic Solvent Cleaning: as defined in Rule 4663 (Organic Solvent Cleaning, Storage, and Disposal).

SJVUAPCD 4605 -5 9/20/20073.51 Phosphate Ester Resistant Wire Ink Coatin g: a coating that is used for surface
identification or mark on ae rospace wire or ca ble and which inhibits the corrosion caused by contact with phosphate ester type hydraulic fluids.

3.52 Pretreatment Coating: a coating which contains no more than 12 percent solids by weight, and at least one-half (0.5) perc ent acid, by weight, to provide surface etching, and is applied directly to metal surfaces to provide corrosion resistance, adhesion and ease of stripping.

3.53 Primer: a coating applied directly to an aerospace compon ent for purposes of corrosion prevention, protection from the en vironment, functiona l fluid resistance and adhesion of subsequent coat ings, adhesives, or sealants.

3.54 Radiation-Effect Coating: a coating which helps in the prevention of radar
detection.

3.55 Rain Erosion Resistant Coating: a co ating that protects leading edges, flaps, stabilizers, and engine inle t lips against erosion caused by rain during flight.

3.56 Remanufactured Aircraft Part: an aero space component that is built as a spare part or replacement part s ubject to an existing commercial aircraft specification.

3.57 Roll Coating: application of coatings from a paint trough to a flat surface by
mechanical series of rollers.

3.58 Scale Inhibitor: a coating that is applie d to the surface of a part prior to thermal processing to inhibit the formation of tenacious scale.

3.59 SCAQMD: South Coast Air Quality Management District.

3.60 Sealant: a viscous semisolid material that fills voids in order to seal out water, fuel, and other liquids and solids, and in some cases air movement, and is applied with a syringe, caulking gun, or spatula.

3.61 Short Term Adhesive Bonding Primer: an adhesive bonding primer that has met the manufacturers’ required performance characteristics following 1000 hours testing, used for metal to metal and metal to structural core bonding, and with an adhesive which is specified to be cured at a temperature of 350 o F ± 10 ° F.

3.62 Solid Film Lubricant: a ve ry thin coating consisting of a binder system containing as its chief pigment materi al one (1) or more of th e following: molybdenum disulfide, graphite, polytetrafluoroethylene (PTFE) or other solids that act as a dry
lubricant between clos ely-fitting surfaces.

3.63 Solvent: as defined in Rule 4663 (Organic Solvent Cleaning, Storage, and Disposal).

SJVUAPCD 4605 -6 9/20/20073.64 Sonic and Acoustic Applications: the us e of aerospace materi als on aerospace components that are subject to mechan ical vibration and/or sound wave
cavitation.

3.65 Space Vehicle Coating: a coating applied to vehicles designed to travel beyond earth's atmosphere.

3.66 Stripper: a volatile liquid applied to remove a maskant for chemical processing, cured or dried paint, cured or dried pain t residue or temporary protective coating.

3.67 Structural Adhesive - Autocl avable: an adhesive used to bond load-carrying aircraft components and is cure d by heat and pressure in an autoclave.

3.68 Structural Adhesive - Nonautoclavabl e: an adhesive cured under ambient conditions and is used to bond load-carrying aircraft components or other critical functions,
such as nonstructural bonding near engines.

3.69 Surface Cleaning: any method of cleaning outside of a degreaser, including, but not limited to, wipe cleaning and equipment flushing.

3.70 Temporary Protective Coating: a coatin g applied to an aerospace component to protect it from mechanical and environm ental damage during manufacturing or shipping.

3.71 Topcoat: a coating applied over a pr imer for purposes such as appearance, identification, or protection.

3.72 Transfer Efficiency: the ratio of the weight or volume of coating solids adhering to the part being coated to the weight or volume of coating so lids used in the application process, expressed as a percentage.

3.73 Unicoat: a coating that is applied dir ectly to an aerospace component for purposes of corrosion protection, environmental protec tion and functional fluid resistance that is not subsequently to pcoated. A unicoat is used in lieu of the application of a primer and a topcoat.

3.74 Volatile Organic Compound s (VOCs): as defined in Rule 1020 (Definitions).

3.75 Waste Solvent Material: any solvent whic h may contain dirt, o il, metal particles, sludge, and/or waste products, or wipi ng material containing VOCs including, but not limited to, paper, cloth, sponge, rag, or cotton swab used in organic solvent cleaning.

3.76 Wing Coating: a coating that is corrosi on resistant and is resilient enough to withstand the flexing of wings.

SJVUAPCD 4605 -7 9/20/20073.77 Wire Prebonding Etchant: a non-additi ve surface treatment process to provide bondability of aerosp ace wire coatings to the underlying insulation layer.

4.0 Exemptions

4.1 Jet engine or rocket engine flushing operations using any solvent other than trichloroethylene are exempt from this rule.

4.2 Except for the recordkeeping provisions of Sections 6.1.1 and 6.1.4, the requirements of Section 5.0 shall not appl y to aerospace assembly and component coating operations using not more than four (4) gallons of products containing VOCs per day. Solvent-containing material s used in operations subject to Rule 4662 (Organic Solvent Degreasing Operati ons), shall not be included in this
determination.

4.3 Except for the provisions of Section 6.0, Section 5.0 shall not apply to laboratories which apply coatings, solvents, and adhesi ves to test specimens for purpose of research, development, quality control, and testing for pr oduction-related operations. Any person claiming this exemption sha ll provide operational records, data and calculations, as determined by the APCO to be necessary, to substa ntiate this claim.

4.4 The provisions of Section 5.1 of this rule shall not apply to:

4.4.1 Coatings or aerosols w ith separate formulations th at are used in volumes of less than one (1) gallon on any day or 20 gallons in any calendar year at an aerospace assembly an d component coating st ationary source, or

4.4.2 Adhesives with separate formulations that are used in volumes of less than one half (0.5) gallon on any day or ten (10) gallons in any calendar year at an aerospace assembly an d component coating stationary source.

Any operator seeking to claim the exemptio n in Section 4.4 sha ll notify the APCO in writing that substitu te compliant coatings are not available.

4.5 The provisions of Section 5.5 shall not appl y to the application of coatings that:

4.5.1 Contain less than 20 grams of VOC per liter of coating less water and exempt compounds, or

4.5.2 Are dispensed from hand-held aerosol cans.

5.0 Requirements

5.1 Aerospace Coatings and Adhesives: After the applicable effective date indicated in Table 1, an operator shall not apply to any aerospace component any coating,

SJVUAPCD 4605 -8 9/20/2007aerosol or adhesive with a VOC content, less water and exempt compounds, as applied, in excess of the limits in Table 1.

Table 1 – VOC Content Limits (Grams of VOC Per Liter of Coating, Less Water and Exempt Compound) Product (VOC Containing Materi al) VOC Content Limit in g/L

Adhesion Promoter 850

Adhesives

Non-Structural 250

Structural

Autoclavable 50

Nonautoclavable 850 Adhesive Bonding Primers

New Commercial Aircraft 250 All Military Aircraft 805

Remanufactured Commercial
Aircraft Parts 805

Sonic and Acoustic Applications 805 Long Term 250

Short Term 250 Antichafe Coatings 600 Barrier Topcoat 420 Clear Topcoat 520 Conformal Coating 750 Dry Lubricative Materials Fastener Manufacturing 120 Nonfastener Manufacturing 675 Electric/Radiation Effect Coatings 800

Fastener Sealants 675 Fire Resistant Coatings Civilian (Interior) 650 Flight Test Coatings Used on Missiles or Single-Use Target Craft 420

All others 600 Fuel Tank Coatings

General 420 Epoxy 420

Fuel Tank Adhesives 620 High Temperature Coating 850 Impact Resistant Coating 420 Maskants - Chemical Milling 250 Optical Anti-Reflective Coating 700 Pretreatment Coatings 780

Primers

SJVUAPCD 4605 -9 9/20/2007Table 1 – VOC Content Limits (Grams of VOC Per Liter of Coating, Less Water and Exempt Compound) Product (VOC Containing Materi al) VOC Content Limit in g/L

General 350 Commercial Exterior Aerodynamic

Structure 350

Rain Erosion Resistant Coating 800

Scale Inhibitor 880

Sealant 600

Solid Film Lubricants Fastener Manufacturing 250

Fastener Installation 880 Nonfastener Manufacturing 880 Space Vehicle Coatings Electrostatic Discharge Protection 800 Other Space Vehicle Coatings 1000

Adhesives 800 Temporary Protective Coatings 250 Topcoats 420 Unicoats (Self Priming Topcoats) 420 Wing Coating 750 Wire Coatings

Electronic 420 Anti-Wicking 420 Pre-Bonding Etching 420 Phosphate Ester Resistant Ink 925

5.2 Evaporative Loss Minimization:

5.2.1 Surface Cleaning: No operator sh all use a solvent fo r surface cleaning, clean-up, or jet engine or rocket engi ne gas path cleaning or flushing, not exempt under Section 4.0 of this rule, excluding stripping coatings or cleaning coating applicat ion equipment, unless:

5.2.1.1 the solvent contains less than 200 grams of VOC per liter (1.67 lb/gal) of material , as applied; or

5.2.1.2 the VOC composite vapor pressure of the so lvent is less than or equal to 45 mm Hg (0.87 ps ia) at a temperature of 68 ° F.

5.2.2 Coating Application Equipment Cleaning

An operator shall not use VOC-cont aining materials to clean spray equipment used for the application of coatings, adhesives, or ink, unless an enclosed system or equipment that is proven to be equally effective at

SJVUAPCD 4605 -10 9/20/2007controlling emissions is used for cleani ng. If an enclosed system is used, it must totally enclose spray guns, c ups, nozzles, bowls, and other parts during washing, rinsing and draining procedures, and it must be used according to the manufacturer’s re commendations and must be closed
when not in use.

5.2.3 In lieu of compliance with Sections 5.2.1 or 5.2.2, an operator may control VOC emissions from surface cleaning operations or from cleaning coating application equipment with a VOC emi ssion control system that meets the requirements of Section 5.6.

5.3 Coating Strippers

5.3.1 No operator shall use or specify for use within the District a coating stripper unless it contains less than 300 gram s of VOC per liter (2.5 lb/gal), as applied, or unless it has a VOC comp osite vapor pressure of 9.5 mm Hg (0.18 psia) or less at 68 ° F.

5.3.2 In lieu of compliance with Section 5.3.1, an operator may control emissions from coating stripper oper ations with a VOC emission control system that meets the re quirements of Section 5.6.

5.4 Storage and Disposal of VOC Containing Materials: An operator shall store or dispose of fresh or spent solvents, waste solvent cleaning materials such as cloth, paper, etc., coatings, adhesives, catalyst s, and thinners in closed, non-absorbent and non-leaking containers. The containers shall remain closed at all times except when depositing or removing the contents of the containers or when the container is empty.

5.5 Application Equipment Requi rements: No operator shall apply coatings subject to the provisions of this ru le unless one (1) of the fo llowing methods is used:

5.5.1 Electrostatic application;

5.5.2 Electrodeposition;

5.5.3 High-Volume, Low- Pressure (HVLP) spray,

5.5.3.1 High-Volume, Low-Pressure (HVLP) spray equipment shall be operated in accordance with the manufacturer's
recommendations.

5.5.3.2 For HVLP spray guns manufactured prior to January 1, 1996, the
end user shall demonstrate that the gun meets HVLP spray equipment standards. Satisfactory proof will be either in the form of manufacturer's publishe d technical material or by a

SJVUAPCD 4605 -11 9/20/2007demonstration using a certified ai r pressure tip gauge, measuring the air atomizing pressure dynamically at the center of the air cap
and at the air horns.

5.5.3.3 A person shall not sell or offer for sale for use within the District any HVLP spray gun without a permanent marking denoting the maximum inlet air pressure in psig at which the gun will operate within the parameters specified in Section 3.0.

5.5.4 Flow coating;

5.5.5 Roll coating;

5.5.6 Dip coating;

5.5.7 Brush coating.

5.5.8 In lieu of compliance with S ections 5.5.1 through 5.5.7, an operator may control VOC emissions from applica tion equipment with a VOC emission control system that meets th e requirements of Section 5.6.

5.6 VOC Emission Control System

As an alternative to meeti ng the requirements of Sections 5.1, 5.2, 5.3, or 5.5, an operator may install a VOC emission cont rol system provided that the VOC emission control system meets a ll of the following requirements:

5.6.1 The VOC emission control syst em shall be approved by the APCO.

5.6.2 The VOC emission control system sh all comply with the requirements of Sections 5.6.3 through 5.6.5 during periods of emission-producing
activities.

5.6.3 The VOC control system’s VOC co ntrol device sha ll have a control efficiency of at least 95 percent, by weight.

5.6.4 The VOC emission control system’s VOC collection device(s) shall have a capture efficiency of at least 90 percent by weight.

5.6.5 In no case shall compliance through the use of a VOC emission control system result in VOC emissions in excess of the VOC emissions which would result from compliance with a pplicable provisions of Sections 5.1, 5.2, 5.3, or 5.5.

SJVUAPCD 4605 -12 9/20/20075.6.6 The minimum required overall capture and control efficiency of an emission control system at which an equivalent or greater level of VOC reduction will
be achieved shall be calculated by using the following equation:



## ( ) ( ) 100 x D / VOC -1 D / VOC -1

x VOC

VOC -1 = CE

c LWc n, LWn,

LWn,

LWc ⎥ ⎦ ⎤ ⎢ ⎣ ⎡ ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

Max Max

Max

Where: CE = Minimum Required Over all Capture and Control Efficiency, percent

VOC LWc = VOC Limit, less wate r and exempt compounds

VOC LWn,Max = Maximum VOC content of noncompliant coating used in conjunction with a control de vice, less water and exempt compounds

D n,Max = Density of solvent, reducer, or thinner contained in the noncompliant coating, cont aining the maximum VOC content of the multi-component coating

D
c = Density of corresponding so lvent, reducer, or thinner used in the compliant coating system.

5.7 Prohibition of Solicitation: No person shall solicit, specify , or require an operator to use any coating, solvent, spray equipment, or VOC emission control system that
does not meet the limits or requirements of this rule.

6.0 Administrative Requirements

6.1 Recordkeeping

6.1.1 An operator subject to the requirem ents of this rule shall have coating manufacturer's specifications, either li sted on the coating container, product data sheet, or on Material Safety Data Sheets (MSDS), available for review and shall maintain daily records which show the fo llowing information as applicable:

6.1.1.1 manufacturer name and type for each coat ing, solvent, thinner, reducer or stripper used,

6.1.1.2 mix ratio, by volume, of compon ents added to the original material prior to application,

6.1.1.3 grams of VOC per liter of each coating, solven t, thinner, reducer or stripper, less water and exem pt compounds, as applied,

6.1.1.4 grams of VOC per liter of e ach solvent, thinner, reducer, or stripper,

SJVUAPCD 4605 -13 9/20/20076.1.1.5 volume and method of applicatio n of each coating, solvent, thinner, reducer or stripper applied, and

6.1.1.6 vapor pressure of solvents used.

6.1.2 An operator shall main tain records to support th at the following coatings have been specified for th eir intended application.

6.1.2.1 adhesion promoter. 6.1.2.2 antichafe coating.
6.1.2.3 electric/radiation effect.
6.1.2.4 fuel tank adhesive. 6.1.2.5 high temperature coating. 6.1.2.6 impact resistant coating. 6.1.2.7 optical anti-reflective coating. 6.1.2.8 rain erosion resistant wing coating.

6.1.3 An operator using a VOC emission control system pursuant to S ection 5.6 as a means of complying with this rule shall maintain dail y records of key system operating parameters and maintenance procedures which will demonstrate continuous operation and compliance of the VOC emission control system during peri ods of emission-pr oducing activities. Key system operating parameters are those necess ary to ensure compliance with VOC limits. The parameters may include, but are not limited to, temperatures, pressures, and flow rates.

6.1. 4 An operator shall retain records for a minimum of five (5) years, make the
records available on site during normal business h ours to the APCO, ARB, or EPA, and submit the records to the APCO, ARB, or EPA upon request.

6.2 Test Methods

6.2.1 Coating VOC content and solvent VOC content shall be determined using
EPA Method 24 or its c onstituent methods. The VOC content of coatings containing exempt halogenated VOCs shall be determined by using the ARB Method 432 or SCAQMD Method 303 (Determination of Exempt Compounds).

6.2.2 The solid content of pretreatment coatings shall be determined using EPA
Method 24. The acid content of pretreatment coatings shall be determined using ASTM Method D1613-96.

6.2.3 The test method for determining the fire resistance of an interior coating
shall be Federal Aviation Administration-required Ohio State University Heat Release, Fire and Burn Tests.

SJVUAPCD 4605 -14 9/20/20076.2.4 The VOC composite vapor pressure of a blended solvent shall be determined by quantifying the amount of each orga nic compound in the blend using gas chromatographic analysis SCAQMD Te st Method 308 (Quantitation of Compounds by Gas Chromatograp hy) and by calculating the VOC composite vapor pressure of the so lvent by summing the product of the vapor pressure of each pure compone nt and its molar fraction. For the purpose of this calculation, the blend sh all be assumed to be an ideal solution where Raoult's Law applies. The vapor pressure of each pure component
shall be obtained from published reference ma nuals or handbooks.

6.2.5 The VOC emissions from enclosed syst ems used to clean coating application equipment shall be determined by the manufacturer using the SCAQMD
General Test Method for Determini ng Solvent Losses from Spray Gun Cleaning Systems.

6.2.6 The control efficiency of a VOC emission control system’s control device(s) shall be determined using EPA Method s 2, 2A, 2C, or 2D for measuring flow rates and EPA Methods 25, 25A, or 25B for meas uring the total gaseous organic concentrations at the in let and outlet of the control device.
EPA Method 18 or ARB Method 422 shall be used to determine the emissions of exempt compounds.

6.2.7 The capture efficiency of a VO C emission control system’s collection device(s) shall be determined according to EPA’s “Guidelines for Determining Capture Efficiency,” January 9, 1995 and 40 CFR 51, Appendix M, Methods 204-204F, as ap plicable, or any other method approved by EPA, ARB, and the APCO.

SJVUAPCD 4605 -15 9/20/2007