Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 1 VENTURA COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 74.13

- AEROSPACE ASSEMBLY A ND COMPONENT MANUFAC TURING

OPERATIONS (Adopted 4/15/86, Revised 10/13/87, 1/22/91, 9/10/96, 11/11/03 , xx/xx/12 )

A. Applicability

This rule is applicable to the manufacturing, assembling, coating, masking, bonding, paint stripping, and surface cleaning of aerospace components and the cleanup of equipment associated with these operations. Where Rule 74.12, Surface Coating of Metal Parts and Products, applies to the coating or c leaning of metal parts, including but not limited to tooling operations, this rule shall not apply.

B. Requirements

1. Aerospace Coatings and Adhesives: No person shall apply to any aerospace component, any coating, or adhesive with a n ROC content in e xcess of the following limits, as applied:

Limits Grams of ROC Per Liter, or Pounds per Gallon of Coating (or Adhesive), Less Water and Exempt Organic Compounds

COATING or ADHESIVE Grams per Liter Pounds per Gallon

Adhesion Promoter 850 7.1

Adhesive s

Non

- Structural 250 2.1

Structural

Autoclavable 50 0.4

Nonautoclavable 850 7.1 Adhesive Bonding Primers 780 6.5 Antichafe Coating 600 5.0 Barrier Coatings 420 3.5 Clear Topcoat 520 4.3 Conformal Coating 750 6.3 Dry Lubricative Materi als

Fastener Manufacturing 250 2.1 Nonfastener Manufacturing 880 7.3 Electric/Radiation Effect Coatings 800 6.7

Fastener Sealants 675 5.6 Fire Resistant Coatings

Civilian (Interior) 650 5.4Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 2 COATING or ADHESIVE Grams per Liter Pounds per Gallo n

Flight Test Coatings Used on Missiles or Single

- Use Target Craft 420 3.5

All Others 600 5.0 Fuel Tank Coatings 420 3.5

Fuel Tank Adhesives 620 5.2 High Temperature Coating 850 7.1 Impact Resistant Coating 420 3.5

Maskants

- Chemical Milling 250 2. 1 Optical Anti

- Reflective Coating 700 5.8 Pretreatment Coatings 780 6.5

Primers Not Resistant

To Phosphate Esters 350 2.9 Phosphate Ester

-

Resistant Primers 350 2.9

Rain Erosion

- Resistant Coating 420 3.5

Scale Inhibitor 880 7.3

Sealant 600 5.0

Solid F ilm Lubricants

Fastener Manufacturing 250 2.1

Solid Film Lubricants

Fastener Installation 880 7.3 Nonfastener Manufacturing 880 7.3 Space Vehicle Coatings

Electrostatic Discharge Protection 800 6.7 Other Space Vehicle Coatings 1000 8.3 Space Vehicle Adhesives 800 6.7 Temporary Protective Coatings 250 2.1 Topcoats 420 3.5 Unicoats (Self

- Priming Topcoats) 420 3.5 Wing Coating 420 3.5 Wire Coatings

Electronic 420 3.5

Anti

- Wicking 420 3.5

Pre

- Bonding Etching 420 3.5 Phosphate Ester Resista nt Ink 925 7.7

2. Surface and General Solvent Cleaning:

a. Surface Solvent Cleaning: No person shall use a solvent for surface solvent cleaning, clean

- up or engine gas path cleaning excluding stripping coatings or cleaning coating application equipment unless: Comment [SC1]: Consistent with the definition

from Rule 74.6

Comment [SC2]: Clean

- up is a subset of solvent cleaning. Cleanup only refers to cleaning coating residue while solvent cleaning involves coating

residue and other contaminants.Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 3 1) The solvent contains less than 200 grams of ROC per liter of material, as applied, or

2) The ROC composite partial pressure of the solvent is less than or equal to 25 mm Hg at a temperature of 20 o C.

b. Coating Application Equipment Cle aning:

No person shall use materials containing ROC for the cleaning of equipment used in coating operations unless an enclosed system or enclosed gun washer is used according to the manufacturer's

recommendations and is closed when not in use.

N o person shall use materials containing ROC for the cleaning of coating application equipment unless:

1) An enclosed gun washer or "low emission spray gun cleaner" that has been approved in writing by the APCO is properly used for spray equipment clean ing, and

2) The ROC composite partial pressure of organic solvent cleaner

used is less than 4 5 5 mm Hg at 20 o C

, or the ROC content of the

solvent cleaner is 25 g rams per liter (0.21 lb/gal) or less (Effective

Dec 1, 2012)

.

3. Coating Strippers: No p erson shall use a coating stripper unless it contains less than 300 grams of ROC per liter, as applied, or unless its ROC composite partial pressure is 9.5 mm Hg or less at 20 o C.

4. Storage of ROC Containing Materials: Closed containers shall be used fo r disposal and storage of cloth, paper, or other solvent

- containing materials used for surface preparation, coating, cleanup, or paint removal. All ROC

- containing materials including, but not limited to, surface coatings, cleanup solvents, or surface prepar ation materials shall be stored in clos ed containers which are

nonabsorbent and do not leak. These storage container shall be closed except when filling or emptying.

5. Coating Transfer Efficiency: No person shall apply coatings except by using

proper ly operated coating application devices and by using:

a. Electrostatic application operated at a minimum of 60 kV,

b. Flow coat application,

c. Dip coat application, Comment [SC3]: Consistent with Rule 74.12Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 4 d. Hand application methods,

e. High volume, low pressure spraying (HVLP) :
, or If a spray gun is used, the end user shall demonstrate that the spray gun meets the definition of HVLP in design and use. HVLP equipment shall be identified b y either test air cap measurements or an inlet pressure measurement that, when used with spe cifications published by the manufacturer tha t reference the corresponding spray nozzle size

, establishes that the gun is being operated as specified in Subsection G. 27

.

f. Such other coating application methods that are demonstrated to achieve a 65 pe rcent transfer efficiency. Alternative Application Method: Any other alternative method that achieves a transfer efficiency equivalent to, or higher than one of the application methods listed in Subsections B.5.a, B.5.b, B.5.c, B.5.d, or B.5.e. Written a pproval of the APCO shall be obtained for each alternative method prior to use.

6. Add

- on Control Equipment Option: A person may comply with provisions of Subsection B.1 or Subsection B.2 by using air pollution control equipment provided that:

a. The co mbined capture and control efficiency reduces emissions by at least 85 percent by weight, and

b. Written approval for such equipment in the form of an Authority to Construct and Permit to Operate is received from the APCO.

7. Prohibition of Solicitatio n: No person shall solicit, specify or require any other person to use in the District any coating, adhesive, solvent, spray equipment, or control equipment that does not meet the limits or requirements of this rule.

8. Coating Compliance Statement: The manufacturer of coatings subject to this rule shall designate on product labels or data sheets, the ROC content or the Volatile Organic Compounds (VOC) content of coatings including coating reducers and catalysts, as supplied. This designation shall incl ude recommendations regarding thinning, reducing, or mixing with any other ROC containing materials, and express the coating ROC or VOC content on an as applied basis when used in

accordance with the manufacturer's recommendations. All letters and numbers used to designate ROC or VOC content on product labels shall be visible and legible.

9. Liquid Cleaning Material Compliance Statement: The manufacturer of liquid cleaning materials used in coating operations shall designate on product labels or

data she ets the ROC content and ROC Composite Partial Pressure of cleaning Formatted: Indent: Left: 0", Hanging: 1.5"

Comment [SC4]: Allow the use of maximum inlet pressure sp ecifications as an alternativeProposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 5 materials as supplied. This designation shall include recommendations regarding mixing with any other ROC containing materials, and express the cleaning

material ROC content when used in a ccordance with the manufacturer's recommendations. All letters and numbers used to designate ROC or VOC content on product labels shall be visible and legible.

10. Low

- Solids Adhesives, Coatings, Primers or Sealant: The appropriate ROC limits

in Subsect ion B.1 shall be expressed in gram s of ROC per liter of material as defined in Subsection G. 30

.

C. Exemptions

1. This rule, except section B.7, shall not apply to any stationary source that emits less than 200 pounds of ROC in every rolling period of 12 consecutive calendar months from aerospace assembly and component manufacturing operations. Emissions from cold cleaners, vapor degreasers, and aerosol products, shall not be

included in this determination.

Any person claiming this exemption shall pro vide operational records, data and calculations, as determined by the APCO to be necessary, to substantiate this

claim.

2. The provisions of Subsection B.1 of this rule shall not apply to any one coating or adhesive provided :

a. No complying coating or ad hesive is available, and

a. b. Any coating with separate formulations used in volumes of less than 20 gallons in any calendar year at a stationary coating source provided that the total usage of all noncomplying coatings (excluding noncomplying

adhesives ) has not exceeded 200 gallons annually , or

b. c. Any adhesive with separate formulations used in volumes of less than 10 gallons in any calendar year at a stationary coating source

, provided that the total volume of noncomplying coatings (excluding nonc omplying adhesives) used at a stationary source does not exceed 200 gallons annually

.

Any person claiming this exemption shall demonstrat e the lack of an available coating or adhesive to the APCO on an annual basis.

3. The provisions of Subsection B.2 .a of this rule shall not apply to the cleaning of aerospace assembly and subassembly surfaces that are exposed to strong oxidizers or reducers such as nitrogen tetroxi o de, liquid oxygen or hydrazine. Comment [SC5]: Consistent with Rule 74.12

Formatted: Numbered + Level: 1 + Numbering Style: a, b, c,

... + Start at: 1 + Alignment: Left + Aligned at: 1" + Indent at:

1.5"

Formatted: Indent: Left: 1.5", First line: 0"

Formatted: Indent: Left: 0", Hanging: 1.5"Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 6 4. Any person seeking to claim the exemption in Su bsection C.2 shall notify the APCO in writing that substitute complying coatings are not available.

5. 4. The provisions of Subsection B.5 shall not apply to the application of coatings

that C c ontain less than 20 grams of ROC per liter of coating less wat er and less exempt organic compounds.

6. 5. This rule shall not apply to aerosol coating products.

6

. This rule shall not apply to solvent cleaning conducted inside of a degreas er

. Solvent cleaning inside of a degreaser shall be subject to the requiremen ts of Rule 74.6 or Rule 74.6.1, as applicable

.

D. Recordkeeping

1. Any person subject to the requirements of this rule shall : have coating manufacturer's specification sheets, such as Material Safety Data Sheets (MSDS),

available for review and shall maintain current records which show the following for each coating and adhesive:

a. Type Maintain a current list of all coatings and adhesives that provides all information necessary to evaluate compliance, including the following, as applicable:

1) The na me and manufacturer of each coating and adhesive and any catalysts and reducers used with each coating or adhesive 2) Mix ratio of components used 3) ROC content , as applied (Less Water and Exempt Organic Compounds except for Low

- Solids Coatings or Adhesives, w hich are expressed as Grams of ROC per liter of Material) 4) Category from Subsection B.1

b. Maintain records which show the following for each ROC containing material used for cleanup, including equipment cleaning, and each ROC containing material used for sol vent cleaning:

1) Type 2) ROC content in grams per liter of material 3) Composite ROC partial pressure of organic solvent (where applicable)

c. Maintain records of the monthly volume of each complying coating, adhesive, and ROC

- containing liquid used f or solvent cle aning or strippin g, and daily volume of each noncompliant coating , adhesive, stripper, or cleaning solvent. Any person claiming the coating or adhesive Formatted: Indent: Left: 0.5", Hanging: 0.5"

Comment [SC6]: Added for clarification.

Comment [SC7]: Recordkeeping consistent with

Rule 74.12

Formatted: Indent: Left: 0", Hanging: 1.5"

Formatted: Indent: Left: 1.5", Hanging: 0.5",

Numbered + Level: 1 + Numbering Style: 1, 2, 3,

... + Start at: 1 + Alignment: Left + Aligned

at: 1.5" + Indent at: 1.75"

Formatted: Numbered + Level: 1 + Numbering Style: 1, 2, 3,

... + Start at: 1 + Alignment: Left + Aligned at: 1.5" + Indent at:

1.75"

Formatted: Indent: Left: 1.5", Hanging: 0.5",

Numbered + Level: 1 + Numbering Style: 1, 2, 3,

... + Start at: 1 + Alignment: Left + Aligned

at: 1.5" + Indent at: 1.75"

Formatted: Numbered + Level: 1 + Numbering Style: 1, 2, 3,

... + Start at: 1 + Alignment: Left + Aligned at: 1.5" + Indent at:

1.75"

Formatted: Indent: Left: 1.5"

Formatted: Numbered + Level: 1 + Numbering Style: a, b, c,

... + Start at: 1 + Alignment: Left + Aligned at: 1" + Indent at:

1.5"

Formatted: Indent: Left: 1.5"

Formatted: Numbered + Level: 1 + Numbering Style: 1, 2, 3,

... + Start at: 1 + Alignment: Left + Aligned at: 1.5" + Indent at:

2"

Formatted: Numbered + Level: 1 + Numbering Style: a, b, c,

... + Start at: 1 + Alignment: Left + Aligned at: 1" + Indent at:

1.5"Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 7 small

- use exemption in Subsection C.2 shall maintain records of each exempt coating or adhesive used on a monthly basis.

d. Any person using an emission control system as a means of complying with this rule shall maintain daily records of key system operating and maintenance procedures which will demonstrate continuous operation and compliance of the emi ssion control device during periods of emission producing activities.

b. Grams of ROC per liter of coating, less water and less exempt organic compound, as applied

c. Mix ratio of coatings and reducers or quantities of any coating components, reduce rs or thinners used

d. Daily volume of coating and adhesive applied. Any person that uses only complying coatings and adhesives may maintain these records on a monthly basis instead of a daily basis.

e. Method of application

2. Any person subject to this rule shall have manufacturer's specification sheets for all strippers and solvents subject to this rule available for review and shall maintain records which include the following items:

a. Type

b. ROC content of solvent, in grams per liter, as applied

c. Daily volume of solvent and stripper used. Any person that uses only complying solvents and strippers may maintain these records on a monthly basis instead of a daily basis.

d. ROC composite partial pressure of solvent used

3. Any pe rson claiming the coating exemption in Subsection C.2 shall maintain records of each exempt coating which show on a monthly basis, the following for each coating:

a. Coating type

b. Volume of coating applied

c. Mix ratio of coatings and reducers or quantities of any coating components, reducers or thinners used Formatted: Indent: Left: 1.5"

Formatted: Indent: Left: 1", Hanging: 0.5",

Tab stops: 1", Left

Formatted: Indent: Left: 0", Hanging: 1.5"

Formatted: Indent: Left: 0", Hanging: 1.5"

Formatted: Indent: Left: 0", Hanging: 1"

Formatted: Indent: Hanging: 1"

Formatted: Indent: Left: 0", Hanging: 1"Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 8 d. Grams of ROC per liter of coating, less water and exempt organic compounds as applied.

e. Method of application

4. 2. Any person subject to this rule shall record any coating or adhe sive intended for use in any of the specialty categories listed below. This record shall be available for review and shall include the manufacturer name, product ID number, specialty category, ROC limit as applied, and information to support that the spec ialty coating or adhesive has been specified for the intended application.

Adhesion Promoter Coating Antichafe Coating Electric/Radiation Effect Coating Fuel Tank Adhesive High Temperature Coating Optical Anti

- Reflective Coating

5. Any person us ing an emission control system as a means of complying with this rule shall maintain daily records of key system operating and maintenance procedures which will demonstrate continuous operation and compliance of the emission control device during periods o f emission producing activities. Key system operating parameters are those necessary to ensure compliance with subsection B.6 such as temperatures, pressures and flow rates.

6. 3

. Such records shall be maintained for a minimum of two (2) years and sha ll be available for inspection by the APCO. A longer period of time for record retention may be specified by a permit condition.

E. Test Methods

1. Coating ROC content and solvent ROC content shall be determined using EPA

Reference Method 24 or its cons tituent methods. The ROC content of coatings or solvents containing exempt organic compounds shall be determined by CARB

Test Method 432.

2. The solid content of pretreatment coatings shall be determined using ASTM

Method D2369

- 95, “Standard Test for Vo latile Content of Coatings

. ” The acid content of pretreatment coatings shall be determined using ASTM Method

D1639

- 83 90(1996)e1, Standard Test Method for Acid Value of Organic Coating

Material

. ”

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.

4. ROC composite pressure of a solvent or stripper shall be calculated using a widely accepted published source such as: Boubli k, T., V. Fried and E. Hala, "The Vapor Formatted: Indent: Hanging: 1"

Comment [SC8]: Moved to Section D.1.dProposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 9 Pressure of Pure Substances," Elsevier Scientific Publishing Co., New York (1973), Perry's Chemical Engineer's Handbook, McGraw

- Hill Book Company, CRC Handbook of Chemistry and Physics, Chemical Rubber Publishing

Com pany (1986

- 87), and Lange's Handbook of Chemistry, John A. Dean, editor,

McGraw

- Hill Book Company (1985). The true vapor pressure of a component in a solvent mix may be determined by ASTM Method D2879

- 86 97, “Test Method for Vapor Pressure

- Temperature Rela tionship and Initial Decomposition Temperature of Liquids by Isoteniscope

. ” The ROC composite pressure of a solvent mix consisting entirely of ROC may be determined by ASTM Method

D2879

- 86 97

.

5. The active and passive solvent losses from spray gun cleani ng systems shall be determined using South Coast Air Quality Management District's "General Test Method for Determining Solvent Losses from Spray Gun Cleaning Systems" dated October 3, 1989. The test solvent for this determination shall be any lacquer

thi nner with a minimum vapor pressure of 105 mm Hg at 20 o C. The minimum test temperature shall be 15 o C.

6. Transfer efficiency shall be determined in accordance with the South Coast Air Quality Management District method entitled "Spray Equipment Transfe r Efficiency Test Procedure for Equipment Users" ( May 24, 1989 )

. Spray equipment HVLP equivalency shall be determined by using South Coast AQMD ’s “Guidelines for Demonstrating Equivalency with District Approved Transfer Efficient Spray Guns ” (September 26 , 2002).

7. The capture and control device efficiency of any air pollution control equipment shall be determined according to EPA's technical document, "Guidelines for Determining Capture Efficiency," January 9, 1995, and methods in 40 CFR 52.741 (a)(4)(i v) Control Device Efficiency Testing and Monitoring. 40 CFR 51, Appendix M, Methods 204

- 204F, as applicable : Methods 204, Criteria for and Verification of a Permanent or Temporary Total Enclosure Method 204A, VOC content in Liquid Input Stream

Method 20 4B, V OC Emissions in Captured Stream Method 204C, VOC Emissions in Captured Stream (Dilution Technique) Method 204D, VOC Emissions in Un

- captured Stream from T emporary Total Enclosure Method 204E, VOC Emissions in Un

- captured Stream from Building Enclos ure, and Method 204F, VOC Content in Liquid Input Streams (Distillation Approach) The calculation of control device efficiency shall be determined only during periods of continuous coating operations and shall be averaged over the duration of the coating operation not to exceed 24 hours.

F. Violations

Failure to comply with any provision of this rule, including the requirement to maintain records, shall constitute a violation of this rule.Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 10 G. Definitions

1. "Adhesion Promoter": A c oating primer used applied to a substrate in a

monomolecular thickness to promote wetting and form a chemical bond with the subsequently applied material sealant or other elastomer

.

2. "Adhesive": A substance that is used to bond one surface to another surface by

attachm ent

.

3. "Adhesive Bonding Primer": A coating primer applied in a very thin film to

aerospace adhesive bond detail components for corrosion inhibition and

adhesion to increase adhesive or adhesive film bond strength

.

4. "Aerosol Coating Product"; A pres surized coating product containing pigments or resins that dispenses product ingredients by means of a propellant, and is packaged in a disposable can for hand held application, or for use in specialized equipment for ground traffic/marking applications.

5. "Aerospace Component": Any raw material, partial or completed fabricated part, assembly of parts, or completed unit of any aircraft, helicopter, missile, or space vehicle, including mockups and prototypes.

6. "Antichafe Coating": A coating applied to areas of moving aerospace components which may rub during normal operation.

7. "Anti

- Wicking Wire Coating": The outer coating of a wire which prevents fluid wicking into the insulation of the wire.

8. "Barrier Coating": A coating applied in a thi n film to fasteners to inhibit dissimilar metal corrosion and to prevent galling.

9

. “Capture Efficiency”: The percentage of ROC used, emitted, evolved, or generated by the operation, that is collected and directed to an air pollution control

device.

9 10

. "Coating": A material which is applied to a surface and which forms a film in order to beautify and/or protect such surface.

10 11

. "Conformal Coating": A coating applied to electrical conductors and circuit boards to protect them against electric al discharge damage and/or corrosion.

12

. “Degreaser”: A container for solvent and articles being cleaned that includes a facility for draining solvent from surfaces such that the drained solvent is returned

to the container. Comment [SC9]: Consistent with definition in Rule 74.6.1, Subsection K.6.Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 11 11 13

. "Dry Lubricative C oating": A coating consisting of lauric acid, cetyl alcohol, waxes, or other non

- cross linked or resin

- bound materials which act as a dry lubricant or protective coat.

12 14

. "Electric

- or Radiation

- Effect Coating": An electric

- effect coating is electri cally

conductive. A radiation

- effect coating helps in the prevention of radar detection.

13 15

. "Electronic Wire Coating": The outer electrical insulation coating applied to tape insulation of a wire specifically formulated to smooth and fill edges.

1 4 16

. "Electrostatic Application": A sufficient charging of atomized paint droplets to cause deposition principally by electrostatic attraction. This application shall be operated at a minimum 60 KV.

15 17

. "Exempt Organic Compounds": As defined in Rule 2, of these rules.

16 18

. "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.

17 19

. "Flight Test Coating": A coating applied to an aircraft prior to flight testing to protect the aircraft from corrosion and to provide required marking during flight

test evaluation.

18 20

. "Fuel Tank Adhesive": An adhesive used to bond components exposed to fuel

and which must be compatible with fuel tank coatings.

19 21

. "Fuel Tank Coating": A coating applied to the interior of a fuel tank or areas of an aircraft that are continuously wetted by fuel to protect it from corrosion and/or bacterial growth.

2 0 2 2

. "Grams of ROC per liter of Coating, less water and exempt organic compounds": The weight of ROC per combined volume of ROC and coating solids, calculated using the following equation:

Grams of ROC per Liter of Coating Less Water and Exempt Organic Com pound= Ws

- Ww

- Wes

Vm

- Vw

- Ves

Where: Ws = Weight of volatile compounds (grams)

Ww = Weight of water (grams)

Wes = Weight of exempt orga nic compounds (grams)

Vm = Volume of material (liters)Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 12 Vw = Volume of water (liters)

Ves = Volume of exempt organic compounds (liters)

2 1 2 3

. "Grams of ROC per Liter of Material": The weight of ROC per volume of

material calculated as follows:

Gram s of ROC per Liter of Material = Ws

- Ww

- Wes

Vm

Where: Ws = Weight of volatile compounds (grams)

Ww = Weight of water (grams)

Wes = Weight of exempt organic compounds (grams)

Vm = Volume of material (liters)

2 2 2 4

. "Gun Washer": Electric ally or pneumatically operated system that is designed to clean spray application equipment while enclosed. A gun washer may also be considered a gun cleaning system that consists of spraying solvent into an enclosed container using a snug fitting.

2 3 2 5

. "Hand Application Methods": The application of coatings, sealants, or adhesives, by nonmechanical hand

- held equipment including but not limited to paint brushes, hand rollers, caulking guns, trowels, spatulas, syringe daubers, rags and sponges.

2 4 2 6

. "High Temperature Coating": A coating that must withstand temperatures of

more than 350 o F.

2 5 2 7

. "High Volume Low Pressure Application (HVLP)": Spray equipment which uses a high volume of air delivered at pressures between 0.1 and 10.0 psig and which

o perates at a maximum fluid delivery pressure of 100 psig. Equipment used to apply coatings by means of a spray gun designed to be operated and operated

between 0.1 and 10 psig air pressure measured dynamically at the center of the air cap and at the air hor ns.

2 6 2 8

. "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.

27 29

. "Low emission spray gun cleaner": Any properly used spray equipment cleanup device which has passive solvent losses of no more than 0.6 grams per hour and has active solvent losses of no more than 15 grams per operating cycle as defined by the test method in Subsection E.5.

30

. “Low

- Solids Adhesive, Coating, Primer or Sealant”: An adhesive, coating, primer, or sealant that has less than one pound of solids per gallon of materialProposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 13 (1 20 grams of solids per liter of material) . Such solids are the non

- volatiles remaining after a s ample is heated at 110 o C for one hour.

28 31

. "Maskant for Chemical Milling": A coating applied directly to an aerospace component to protect surface areas when chemical milling such component.

29 32

. "Non

- Structural Adhesive": An adhesive that bonds n on

- load carrying aircraft components in noncritical applications.

30 33

. "Optical Anti

- Reflective Coating": A coating with a low reflectance in the infrared and visible wavelength range and is used for anti

- reflection on or near optical and laser hardwar e.

31 34

. "Phosphate Ester Resistant Wire Ink Coating": A coating that is used for surface identification or mark on aerospace wire or cable which inhibits the corrosion caused by contact with phosphate ester type hydraulic fluids.

32 35

. "Pretreatment Coating": A coating which contains no more than 12 percent solids by weight, and at least one

- half percent acid, by weight, to provide surface etching, and is applied directly to metal surfaces to provide corrosion resistance, adhesion and ease of strippi ng.

33 36

. "Primer": A coating applied directly to an aerospace component for purposes of corrosion prevention, protection from the environment, functional fluid resistance and adhesion of subsequent coatings.

34 3 7

. "Rain Erosion Resistant Coating": A coating that protects leading edges, flaps, stabilizers, and engine inlet lips against erosion caused by rain during flight.

35 3 8

. "Reactive Organic Compounds (ROC)": As defined in Rule 2.

36 39

. ROC Composite Partial Pressure": The sum of the partial pressures of the compounds defined as ROCs. ROC composite partial pressure is calculated as

follows:



## ( ) ( ) ( )

PP W VP

MW

W

MW W

MW W

MW c i i

i i n

w

w e

e e n i

i i n =       +       +       =

= = 

# ∑ ∑ ∑ 1

1 1

Where:

W i = Weight of the "i"th ROC compound, in grams

W w = Weight of water, in grams

W e = Weight of the "e"th exempt organic co mpound, in grams

MW i = Molecular weight of the "i"th ROC compound, in g/(g

- mole) Formatted: Font: Times New (W1), Superscript

Formatted: Indent: Hanging: 0.5"Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 14 MW w = Molecular weight of water, in g/(g

- mole)

MW e = Molecular weight of the "e"th exempt compound, in g/(g

- mole)

PP c = ROC composite partial pressure at 20 C, in mm Hg

VP i = Vapor pressure of the "i"th ROC compound at 20 C, in mm Hg.

37 4 0

. "Scale Inhibitor": A coating that is applied to the surface of a part prior to thermal processing to inhibit the formation of tenacious scale.

38 4 1

. "Sealant": A viscous semisolid mat erial that fills voids in order to seal out water, fuel, and other liquids and solids, and in some cases air movement.

39 4 2

. "Solid Film Lubricant": A very thin coating consisting of a binder system containing as its chief pigment material one or more o f the following: molybdenum disulfide, graphite, polytetrafluoroethylene (PTFE) or other solids that act as a dry lubricant between faying surfaces.

40 4 3

. "Space Vehicle Coating": A coating applied to vehicles designed to travel beyond earth's atmosphe re , including but not limited to, rocket or satellite coatings

.

41 4 4

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

42 4 5

. "Struct ural Adhesive

- Autoclavable": An adhesive used to bond load

- carrying aircraft components and is cured by heat and pressure in an autoclave.

43 4 6

. "Structural Adhesive

- Nonautoclavable": An adhesive cured under ambient

conditions and is used to bond l oad

- carrying aircraft components or other critical functions, such as nonstructural bonding near engines.

44 "Surface Cleaning": Any method of cleaning outside of a degreaser, including but

not limited to:

a. wipe cleaning

b. equipment flushing

4 7

. “Solvent Cleaning”: The use of solvent to remove loosely held uncured adhesive, uncured ink, uncured coating, uncured resin, or other contaminants which include, but are not limited to, dirt, soil, lubricants, coolant, moisture, grease, and fingerprints from parts, products, tools, machinery, equipment, or general work

areas.

45 4 8

. "Temporary Protective Coating": A coating applied to an aerospace component to protect it from mechanical and environmental damage during manufacturing or shipping. Comment [SC10]: Clarification of existing

definition.

Formatted: Indent: Left: 0", Hanging: 1"

Comment [SC11]: New d efinition consistent

with Rule 74.6Proposed Sept 11

, 201 2 ATTACHMENT 3 Rule 74.13 : 15 46 49

. "Topcoat": A coating applied over a primer for purposes such as appearance, identification, or protection.

47 5 0

. "Transfer Efficiency": The ratio of the weight or volume of coating solids adhering to the part being coated to the weight or volume of co ating solids used in the application process, expressed as a percentage.

48 5 1

. "Unicoat": A coating that is applied directly to an aerospace component for purposes of corrosion protection, environmental protection and functional fluid

resistance that is not subsequently topcoated. A unicoat is used in lieu of the application of a primer and a topcoat.

49 5 2

. "Wing Coating": A coating that is corrosion resistant and is resilient enough to withstand the flexing of wings.

50 5 3

. "Wire Prebonding Etchant" : A nonadditive surface treatment process to provide bondability of aerospace wire coatings to the underlying insulation layer.