Chapter NR 465

NR 465.02(30) (30) “Nonporous substrate” means a surface that is impermeable to liquids. Examples include metal, rigid plastic, flexible vinyl and rubber.

NR 465.02(31) (31) “Operating parameter value” means a minimum or maximum value established for a control device or process parameter that, if achieved by itself or in combination with one or more other operating parameter values, determines that an owner or operator has complied with an applicable emission limit.

NR 465.02(32) (32) “Organic HAP solvent” means a HAP that is a volatile organic liquid used for dissolving or dispersing constituents in a coating or contact adhesive, adjusting the viscosity of a coating or contact adhesive, or cleaning equipment. When used in a coating or contact adhesive, the organic HAP solvent evaporates during drying and does not become a part of the dried film.

NR 465.02(33) (33) “Overall control efficiency” means the efficiency of a control system, calculated as the product of the capture and control device efficiencies, expressed as a percentage.

NR 465.02(34) (34) “Sealer” means a finishing material used to seal the pores of a wood substrate before additional coats of finishing material are applied. “Sealer” does not include special purpose finishing materials that are used in some finishing systems to optimize aesthetics.

NR 465.02(35) (35) “Stain” means any color coat having a solids content by weight of no more than 8.0% that is applied in single or multiple coats directly to the substrate. “Stain” includes nongrain raising stains, equalizer stains, prestains, sap stains, body stains, no-wipe stains, penetrating stains and toners.

NR 465.02(36) (36) “Storage containers” means vessels or tanks, including mix equipment, used to hold finishing, gluing, cleaning or washoff materials.

NR 465.02(37) (37) “Strippable spray booth coating” means a coating that meets all of the following:

NR 465.02(37)(a) (a) Is applied to a spray booth wall to provide a protective film to receive overspray during finishing operations.

NR 465.02(37)(b) (b) Is subsequently peeled off and disposed.

NR 465.02(37)(c) (c) Reduces or eliminates the need to use organic HAP solvents to clean spray booth walls.

NR 465.02(38) (38) “Thinner” means a volatile liquid that is used to dilute coatings or contact adhesives to reduce viscosity, color strength and solids, or to modify drying conditions.

NR 465.02(39) (39) “Topcoat” means the last film-building finishing material that is applied in a finishing system.

NR 465.02(40) (40) “Touchup and repair” means the application of finishing materials to cover minor finishing imperfections.

NR 465.02(41) (41) “VHAP” means any volatile hazardous air pollutant listed in Table 1 in this subchapter.

NR 465.02(42) (42) “VHAP of potential concern” means any VHAP from the list in Table 5 in this subchapter.

NR 465.02(43) (43) “Washcoat” means a transparent special purpose finishing material having a solids content by weight of 12.0% by weight or less.

NR 465.02 Note Note: Washcoats are applied over initial stains to protect, to control color and to stiffen the wood fibers in order to aid sanding.

NR 465.02(44) (44) “Washoff operations” means those operations in which organic HAP solvent is used to remove coating from wood furniture or a wood furniture component.

NR 465.02(45) (45) “Wood furniture” means any product made of wood, a wood product such as rattan or wicker, or an engineered wood product such as particleboard that is manufactured under any of the following standard industrial classification codes, as described in the standard industrial classification manual, 1987, incorporated by reference in s. NR 484.05 (1): 2434, 2511, 2512, 2517, 2519, 2521, 2531, 2541, 2599 or 5712.

NR 465.02(46) (46) “Wood furniture component” means any part that is used in the manufacture of wood furniture. Examples include drawer sides, cabinet doors, seat cushions and laminated tops.

NR 465.02(47) (47) “Wood furniture manufacturing operations” means the finishing, gluing, cleaning and washoff operations associated with the production of wood furniture or wood furniture components.

NR 465.02 History History: CR 00-160: cr. Register August 2001 No. 548, eff. 9-1-01; CR 03-037: am. (intro.), (1), (11), (41), and (42) Register March 2004 No. 579, eff. 4-1-04.

NR 465.03 NR 465.03 Symbols. The symbols used in this subchapter have the following meanings:

NR 465.03(1) (1) “ac” means after the control system is installed and operated.

NR 465.03(2) (2) “Ak” is the area of each natural draft opening k in a total enclosure, in square meters.

NR 465.03(3) (3) “bc” means before control.

NR 465.03(4) (4) “Caj” is the concentration of VHAP in gas stream j exiting the control device, in parts per million by volume.

NR 465.03(5) (5) “Cbi” is the concentration of VHAP in gas stream i entering the control device, in parts per million by volume.

NR 465.03(6) (6) “Cc” is the VHAP content of a finishing material c in kilograms of VHAP per kilogram of coating solids (kg VHAP/kg solids), as supplied. Also given in pounds of VHAP per pound of coating solids (lb VHAP/lb solids).

NR 465.03(7) (7) “Cdi” is the concentration of VHAP in gas stream i entering the control device from the affected source, in parts per million by volume.

NR 465.03(8) (8) “Cfk” is the concentration of VHAP in uncontrolled gas stream k emitted directly to the atmosphere from the affected source, in parts per million by volume.

NR 465.03(9) (9) “E” is the emission limit achieved by an emission point or a set of emission points, in kg VHAP/kg solids (lb VHAP/lb solids).

NR 465.03(10) (10) “F” is the control device efficiency, expressed as a fraction.

NR 465.03(11) (11) “FV” is the average inward face velocity across all natural draft openings in a total enclosure, in meters per hour.

NR 465.03(12) (12) “G” is the VHAP content of a contact adhesive, in kg VHAP/kg solids (lb VHAP/lb solids), as applied.

NR 465.03(13) (13) “Mc” is the mass of solids in finishing material c used monthly, kg solids/month (lb solids/month).

NR 465.03(14) (14) “N” is the capture efficiency, expressed as a fraction.

NR 465.03(15) (15) “Qaj” is the volumetric flow rate of gas stream j exiting the control device, in dry standard cubic meters per hour.

NR 465.03(16) (16) “Qbi” is the volumetric flow rate of gas stream i entering the control device, in dry standard cubic meters per hour.

NR 465.03(17) (17) “Qdi” is the volumetric flow rate of gas stream i entering the control device from the emission point, in dry standard cubic meters per hour.

NR 465.03(18) (18) “Qfk” is the volumetric flow rate of uncontrolled gas stream k emitted directly to the atmosphere from the emission point, in dry standard cubic meters per hour.

NR 465.03(19) (19) “Qin i” is the volumetric flow rate of gas stream i entering the total enclosure through a forced makeup air duct, in standard cubic meters per hour, wet basis.

NR 465.03(20) (20) “Qout j” is the volumetric flow rate of gas stream j exiting the total enclosure through an exhaust duct or hood, in standard cubic meters per hour, wet basis.

NR 465.03(21) (21) “R” is the overall efficiency of the control system, expressed as a percentage.

NR 465.03(22) (22) “S” is the VHAP content of a solvent, expressed as a weight fraction, added to finishing materials.

NR 465.03(23) (23) “W” is the amount of solvent, in kilograms (pounds), added to finishing materials during the monthly averaging period.

NR 465.03 History History: CR 00-160: cr. Register August 2001 No. 548, eff. 9-1-01; CR 03-037: am. (intro.) Register March 2004 No. 579, eff. 4-1-04.

NR 465.04 NR 465.04 Emission limits.

NR 465.04(1) (1) The owner or operator of an existing affected source shall do all of the following:

NR 465.04(1)(a) (a) Limit VHAP emissions from finishing operations to no more than the emission limitations for existing sources presented in Table 2 in this subchapter, using any of the compliance methods in s. NR 465.06 (1) (a). To determine VHAP emissions from a finishing material containing formaldehyde or styrene, the owner or operator of the affected source shall use the methods presented in s. NR 465.05 (12) (a) 2. for determining styrene and formaldehyde usage.

NR 465.04(1)(b) (b) Limit VHAP emissions from contact adhesives to no more than the following as appropriate:

NR 465.04(1)(b)1. 1. 1.8 kg VHAP/kg solids (1.8 lb VHAP/lb solids), as applied, for foam adhesives used in products that meet the upholstered seating flammability requirements of California technical bulletin 116, 117 or 133, incorporated by reference in s. NR 484.06 (5), the business and institutional furniture manufacturers association’s BIFMA X5.7-1991, incorporated by reference in s. NR 484.11 (7), upholstered furniture action council flammability test methods, incorporated by reference in s. NR 484.11 (10), or any similar requirements from local, state or federal fire regulatory agencies.

NR 465.04(1)(b)2. 2. 1.0 kg VHAP/kg solids (1.0 lb VHAP/lb solids), as applied, for all other contact adhesives, including foam adhesives used in products that do not meet the standards in subd. 1., but excluding aerosol adhesives and excluding contact adhesives applied to nonporous substrates.

NR 465.04(1)(c) (c) Limit HAP emissions from strippable spray booth coatings by using coatings that contain no more than 0.8 kg VOC/kg solids (0.8 lb VOC/lb solids), as applied.

NR 465.04(2) (2) The owner or operator of a new affected source shall do all of the following:

NR 465.04(2)(a) (a) Limit VHAP emissions from finishing operations to no more than the emission limitations for new sources presented in Table 2 in this subchapter using any of the compliance methods in s. NR 465.06 (2) (a). To determine VHAP emissions from a finishing material containing formaldehyde or styrene, the owner or operator of the affected source shall use the methods presented in s. NR 465.05 (12) (a) 2. for determining styrene and formaldehyde usage.

NR 465.04(2)(b) (b) Limit VHAP emissions from contact adhesives, excluding aerosol adhesives and excluding contact adhesives applied to nonporous substrates, to no more than 0.2 kg VHAP/kg solids (0.2 lb VHAP/lb solids), as applied, using either of the compliance methods in s. NR 465.06 (2) (b).

NR 465.04(2)(c) (c) Limit HAP emissions from strippable spray booth coatings by using coatings that contain no more than 0.8 kg VOC/kg solids (0.8 lb VOC/lb solids), as applied.

NR 465.04 History History: CR 00-160: cr. Register August 2001 No. 548, eff. 9-1-01; CR 03-037: am. (1) (a) and (2) (a) Register March 2004 No. 579, eff. 4-1-04.

NR 465.05 NR 465.05 Work practice standards.

NR 465.05(1) (1) Work practice implementation plan. The owner or operator of an affected source shall prepare and maintain a written work practice implementation plan that defines environmentally desirable work practices for each wood furniture manufacturing operation and addresses each of the work practice standards in subs. (2) to (12). The plan shall be developed no more than 60 days after the applicable compliance date in s. NR 465.055. The written work practice implementation plan shall be available for inspection by the department upon request. If the department determines that the work practice implementation plan does not adequately address each of the topics specified in subs. (2) to (12), or that the plan does not include sufficient mechanisms for ensuring that the work practice standards are being implemented, the department may require that the owner or operator of the affected source modify the plan. Revisions or modifications to the plan do not require a revision of a permit issued under ch. NR 407.

NR 465.05(2) (2) Operator training course. The owner or operator of an affected source shall train all personnel, including contract personnel, who are involved in finishing, gluing, cleaning or washoff operations, use of manufacturing equipment or implementation of the requirements of this subchapter. Personnel hired on or after the compliance date of the standard shall be trained upon hiring. Personnel hired before the compliance date shall be trained within 6 months of the compliance date of the standard. All personnel shall be given refresher training annually. The owner or operator of an affected source shall maintain a copy of the training program with the work practice implementation plan. The training program shall include, at a minimum, all of the following:

NR 465.05(2)(a) (a) A list of all current personnel by name and job description that are required to be trained.

NR 465.05(2)(b) (b) An outline of the subjects to be covered in the initial and refresher training for each position or group of personnel.

NR 465.05(2)(c) (c) Lesson plans for courses to be given at the initial and the annual refresher training that include, at a minimum, appropriate application techniques, appropriate cleaning and washoff procedures, appropriate equipment setup and adjustment to minimize finishing material usage and overspray and appropriate management of cleanup wastes.

NR 465.05(2)(d) (d) A description of the methods to be used to demonstrate and document that personnel have successfully completed the initial and refresher training.

NR 465.05(3) (3) Inspection and maintenance plan. The owner or operator of an affected source shall prepare and maintain, with the work practice implementation plan, a written leak inspection and maintenance plan for all pumps, valves, flanges and other equipment used to transfer or apply coatings, adhesives or organic HAP solvents that specifies all of the following:

NR 465.05(3)(a) (a) An inspection schedule which specifies a minimum visual inspection frequency of once per month.

NR 465.05(3)(b) (b) Methods for documenting the date and results of each inspection and any repairs that were made.

NR 465.05(3)(c) (c) The timeframe between identifying the leak and making the repair, which adheres, at a minimum, to the following schedule:

NR 465.05(3)(c)1. 1. A first attempt at repair shall be made no later than 5 calendar days after the leak is detected.

NR 465.05(3)(c)2. 2. Final repairs shall be made within 15 calendar days after the leak is detected, unless the leaking equipment is to be replaced by a new purchase, in which case repairs shall be completed within 3 months.

NR 465.05(4) (4) Cleaning and washoff solvent accounting system. The owner or operator of an affected source shall develop an organic HAP solvent accounting form to record all of the following:

NR 465.05(4)(a) (a) The quantity and type of organic HAP solvent used each month for washoff and cleaning operations.

NR 465.05(4)(b) (b) The number of pieces washed off, and the reason for the washoff.

NR 465.05(4)(c) (c) The quantity of spent organic HAP solvent generated from each washoff and cleaning operation each month, and whether it is reused onsite in a process other than cleaning or washoff or disposed of outside of the facility boundaries.

NR 465.05(5) (5) Chemical composition of cleaning and washoff solvents. The owner or operator of an affected source may not use solvents for cleaning or washoff operations that contain any of the pollutants listed in Table 3 in this subchapter in concentrations that require inclusion on an MSDS in accordance with the occupational safety and health administration hazard communication standard in 29 CFR part 1910 Subpart Z, incorporated by reference in s. NR 484.03 (1).

NR 465.05(6) (6) Spray booth cleaning. The owner or operator of an affected source may not use compounds containing more than 8.0% by weight of VOC for cleaning spray booth components other than conveyors, continuous coaters and their enclosures, or metal or plastic filters. If the spray booth coating or other protective material used to cover the booth is being replaced, the owner or operator may not use more than 1.0 gallon of organic HAP solvent per booth to prepare the surface of the booth prior to applying the booth coating.

NR 465.05(7) (7) Storage requirements. The owner or operator of an affected source shall store finishing, gluing, cleaning and washoff materials in closed containers.

NR 465.05(8) (8) Application equipment requirements. The owner or operator of an affected source may use conventional air spray guns to apply finishing materials only under any of the following circumstances:

NR 465.05(8)(a) (a) To apply finishing materials that have a VOC content no greater than 1.0 kg VOC/kg solids (1.0 lb VOC/lb solids), as applied.

NR 465.05(8)(b) (b) For touchup and repair under any of the following conditions:

NR 465.05(8)(b)1. 1. The touchup and repair occurs after completion of the finishing operation.

NR 465.05(8)(b)2. 2. The touchup and repair occurs after the application of stain and before the application of any other type of finishing material, and the materials used for touchup and repair are applied from a container that has a volume of no more than 2.0 gallons.

NR 465.05(8)(c) (c) When the spray gun is aimed and triggered automatically.

NR 465.05(8)(d) (d) When emissions from the finishing application station are directed to a control device.

NR 465.05(8)(e) (e) When the cumulative total usage of finishing materials applied with conventional air spray guns is no more than 5.0% of the total gallons of finishing material used during that semiannual period.

NR 465.05(8)(f) (f) When the conventional air gun is used to apply stain on a part for which it is technically or economically infeasible to use any other spray application technology. The owner or operator of an affected source shall demonstrate technical or economic infeasibility by submitting to the department a videotape, a technical report or other documentation that supports the affected source’s claim of technical or economic infeasibility. The owner or operator shall use one or both of the following criteria to support a claim that no other spray application technology is technically or economically feasible: