Section 1200-03-16-.57 - INDUSTRIAL SURFACE COATING: SURFACE COATING OF PLASTIC PARTS FOR BUSINESS MACHINES(1) Applicability and Designation of Affected Facility (a) The provisions of this rule apply to each spray booth in which plastic parts for use in the manufacture of business machines receive prime coats, color coats, texture coats, or touch-up coats.(b) This rule applies to any affected facility for which construction, modification, or reconstruction begins after November 6, 1988.(2) Definitions and Symbols (a) Definitions 1. "Business machine" means a device that uses electronic or mechanical methods to process information, perform calculations, print or copy information, or convert sound into electrical impulses for transmission, such as: (i) Products classified as typewriters under SIC Code 3572;(ii) Products classified as electronic computing devices under SIC Code 3573;(iii) Products classified as calculating and accounting machines under SIC Code 3574;(iv) Products classified as telephone and telegraph equipment under SIC Code 3661;(v) Products classified as office machines, not elsewhere classified, under SIC Code 3579; and(vi) Photocopy machines, a subcategory of products classified as photographic equipment under SIC Code 3861.2. "Coating operation" means the use of a spray booth for the application of a single type of coating (e.g., prime coat); the use of the same spray booth for the application of another type of coating (e.g., texture coat) constitutes a separate coating operation for which compliance determinations are performed separately.3. "Coating solids applied" means the coating solids that adhere to the surface of the plastic business machine part being coated.4. "Color coat" means the coat applied to a part that affects the color and gloss of the part, not including the prime coat or texture coat. This definition includes fog coating.5. "Conductive sensitizer" means a coating applied to a plastic substrate to render it conductive for purposes of electrostatic application of subsequent prime, color, texture, or touch-up coats.6. "Fog coating" (also known as mist coating and uniforming) means a thin coating applied to plastic parts that have molded-in color or texture or both to improve color uniformity.7. "Nominal 1-month period" means either a calendar month, 30-day month, accounting month, or similar monthly time period that is established prior to the performance test (i.e., in a statement submitted with notification of anticipated actual startup pursuant to part 1200-3-16-.01 - (7)(a)2).8. "Plastic parts" means panels, housing, bases, covers, and other business machine components formed of synthetic polymers.9. "Prime coat" means the initial coat applied to a part when more than one coating is applied, not including conductive sensitizers or electromagnetic interference/radio frequency interference shielding coatings.10. "Spray booth" means the structure housing automatic or manual spray application equipment where a coating is applied to plastic parts for business machines.11. "Texture coat" means the rough coat that is characterized by discrete, raised spots on the exterior surface of the part.12. "Touch-up coat" means the coat applied to correct any imperfections in the finish after color or texture coats have been applied.13. "Transfer efficiency" means the ratio of the amount of coating solids deposited onto the surface of a plastic business machine part to the total amount of coating solids used.14. "VOC emissions" means the mass of VOC's emitted from the surface coating of plastic parts for business machines expressed as kilograms of VOC's per liter of coating applied, (i.e., deposited on the surface).(b) Symbols: 1. Dc = density of each coating as received (kilograms per liter)2. Dd = density of each diluent VOC (kilograms per liter)3. Lc = the volume of each coating consumed, as received (liters)4. Ld = the volume of each diluent VOC added to coatings (liters)5. Ls = the volume of coating solids consumed (liters)6. Md = the mass of diluent VOC's consumed (kilograms)7. Mo = the mass of VOC's in coatings consumed, as received (kilograms)8. N = the volume-weighted average mass of VOC emissions to the atmosphere per unit volume of coating solids applied (kilograms per liter)9. T = the transfer efficiency for each type of application equipment used at a coating operation (fraction)10. Tavg = the volume-weighted average transfer efficiency for a coating operation (fraction)11. Vs = the proportion of solids in each coating, as received (fraction by volume)12. Wo = the proportion of VOC's in each coating, as received (fraction by weight)(3) Standards for Volatile Organic Compounds (VOC's)(a) Each owner or operator of any affected facility which is subject to the requirements of this rule shall comply with the emission limitations set forth in this paragraph on and after the date on which the initial performance test, required by paragraph 1200-3-16 - .01(5)(g) and paragraph (4) of this rule is completed, but not later than 60 days after achieving the maximum production rate at which the affected facility will be operated, or 180 days after the initial startup, whichever date comes first. No affected facility shall cause the discharge into the atmosphere in excess of: 1. 1.5 kilograms of VOC's per liter of coating solids applied from prime coating of plastic parts for business machines.2. 1.5 kilograms of VOC's per liter of coating solids applied from color coating of plastic parts for business machines.3. 2.3 kilograms of VOC's per liter of coating solids applied from texture coating of plastic parts for business machines.4. 2.3 kilograms of VOC's per liter of coatings solids applied from touch-up coating of plastic parts for business machines.(b) All VOC emissions that are caused by coatings applied in each affected facility, regardless of the actual point of discharge of emissions into the atmosphere, shall be included in determining compliance with the emission limits in subparagraph (a) of this paragraph.(4) Performance Tests and Compliance Provisions (a) Subparagraphs 1200-3-16-.01(5)(d) and (f) do not apply to the performance test procedures required by this paragraph.(b) The owner or operator of an affected facility shall conduct an initial performance test as required under 1200-3-16-.01(5) and thereafter a performance test each nominal one (1) month period for each affected facility according to the procedures in this paragraph. 1. The owner or operator shall determine the composition of coatings by analysis of each coating, as received, using Reference Method 24 (as specified in rule 1200- 3-16-.01(5)(g)24.), from data that have been determined by the coating manufacturer using Reference Method 24, or by other methods approved by the Technical Secretary.2. The owner or operator shall determine the volume of coating and the mass of VOC used for dilution of coatings from company records during each nominal 1-month period. If a common coating distribution system serves more than one affected facility or serves both affected and nonaffected spray booths, the owner or operator shall estimate the volume of coatings used at each facility by using procedures approved by the Technical Secretary. (i) The owner or operator shall calculate the volume-weighted average mass of VOC's in coatings emitted per unit volume of coating solids applied (N) at each coating operation during each nominal 1-month period for each affected facility. Each 1-month calculation is considered a performance test. Except as provided in subpart (iii) of this part, N will be determined by the following procedures: (I) Calculate the mass of VOC's used (Mo + Md) for each coating operation during each nominal 1-month period for each affected facility by the following equation: Click to view Image
where n is the number of different coatings used during each nominal 1-month period and m is the number of different diluent VOC's used during each nominal 1-month period. (sum LdjDdj will be "0" if no VOC's are added to the coatings, as received.)
(II) Calculate the total volume of coating solids consumed (Ls) in each nominal 1-month period for each coating operation for each affected facility by the following equation: Click to view Image
where n is the number of different coatings used during each nominal 1-month period.
(III) Select the appropriate transfer efficiency (T) from Table 1 for each type of coating applications equipment used at each coating operation. If the owner or operator can demonstrate to the satisfaction of the Technical Secretary that transfer efficiencies other than those shown are appropriate, the Technical Secretary will approve their use on a case-by-case basis. Transfer efficiency values for application methods not listed below shall be approved by the Technical Secretary on a case-by-case basis. An owner or operator must submit sufficient data for the Technical Secretary to judge the accuracy of the transfer efficiency claims. TABLE 1-Transfer Efficiencies
| Application methods | Transfer Efficiency | Type of Coating |
| Air atomized spray | 0.25 | Prime, Color, Texture, touch up, and fog coats. |
| Air-assisted airless spray | 0.40 | Prime and color coats. |
| Electrostatic air spray | 0.40 | Prime and color coats. |
(IV) Where more than one application method is used within a single surface coating operation, the owner or operator shall determine the composition and volume of each coating applied by each method through a means acceptable to the Technical Secretary and compute the volume-weighted average transfer efficiency by the following equation: Click to view Image
where n is the number of coatings of each type used and p is the number of application methods used. Where Lcik is the volume of each coating consumed, as received (liters); Vsik is the proportion of solids in each coating, as received (fraction by weight); and Tk is the transfer efficiency for each type of application equipment used at a coating operation (fraction, see Table 1).
(V) Calculate the volume-weighted average mass of VOC's emitted per unit volume of coating solids applied (N) during each nominal 1-month period for each coating operation for each affected facility by the following equation: Click to view Image
(ii) Where the volume-weighted average mass of VOC's emitted to the atmosphere per unit volume of coating solids applied (N) is less than or equal to 1.5 kilograms per liter for prime coats, is less than or equal to 1.5 kilograms per liter for color coats, is less than or equal to 2.3 kilograms per liter for texture coats, and is less than or equal to 2.3 kilograms per liter for touch-up coats, the affected facility is in compliance.(iii) If each individual coating used by an affected facility has a VOC content (kg VOC/1 of solids), as received, which when divided by the lowest transfer efficiency at which the coating is applied results in a value equal to or less than 1.5 kilograms per liter for prime and color coats and equal to less than 2.3 kilograms per liter for texture and touch-up coats, the affected facility is in compliance provided that no VOC's are added to the coatings during distribution or application.(iv) If an affected facility uses add-on controls to control VOC emissions and if the owner or operator can demonstrate to the Technical Secretary that the volume-weighted average mass of VOC's emitted to the atmosphere per unit volume of coating solids applied (N) is within limits expressed in subpart (b)2.(ii) of this paragraph because of this equipment, the affected facility is in compliance. In such cases, compliance will be determined by the Technical Secretary on a case-by- case basis.(5) Reporting and Record Keeping Requirements (a) The reporting requirements of subparagraph 1200-3-16-.01(5)(a) apply only to the initial performance test. Each owner or operator subject to the provisions of this rule shall include the following data in the report of the initial performance test required under subparagraph 1200-3-16-.01(5)(a): 1. Except as provided for in part 2 of this subparagraph, the volume-weighted average mass of VOC's emitted to the atmosphere per volume of applied coating solids (N) for the initial nominal 1- month period from each affected facility.2. For each affected facility where compliance is determined under the provisions of subpart (4)(b)2.(iii) of this rule, a list of the coatings used during the initial nominal 1-month period, the VOC content of each coating calculated from data determined using Reference Method 24, and the lowest transfer efficiency of any coating application equipment used during the initial nominal 1-month period.(b) Following the initial report, each owner or operator shall: 1. Report the volume-weighted average mass of VOC's per unit volume of coating solids applied for each affected facility during each nominal 1-month period in which the facility is not in compliance with the applicable emission limit specified in paragraph (3) of this rule. Reports of noncompliance shall be submitted on a quarterly basis, occurring every 3 months following the initial report; and2. Submit statements that each affected facility has been in compliance with the applicable emission limit specified in paragraph (3) of this rule during each nominal 1-month period. Statements of compliance shall be submitted on a semiannual basis.(c) These reports shall be postmarked not later than 10 days after the end of the periods specified in parts (b) 1. and 2. of this paragraph.(d) Each owner or operator subject to the provisions of this rule shall maintain at the source, for a period of at least 2 years, records of all data and calculations used to determine monthly VOC emissions from each affected facility as specified in subparagraph 1200-3-16-.01(7)(d).(e) Reporting and record keeping requirements for facilities using add-on controls will be determined by the Technical Secretary on a case-by-case basis.(6) Test Methods and Procedures (a) The reference methods contained in subparagraph 1200-3-16-.01(5)(g) except as provided in subparagraph 1200-3-16-.01(5)(b) shall be used to determine compliance with paragraph (3) of this rule. Applicable methods are as follows: 1. Method 24 for determination of VOC content of each coating as received.2. For Method 24, the sample must be at least a 1-liter sample in at least a 1-liter container.(b) Other methods may be used to determine the VOC content of each coating if approved by the Technical Secretary before testing.Tenn. Comp. R. & Regs. 1200-03-16-.57
Original rule filed September 21, 1988; effective November 6, 1988.Authority: T.C.A. §§ 68-25-105 and 4-5-202.