NR 440.525(7)(b) (b) The owner or operator shall determine compliance with the particulate matter standards sub. (3) as follows:

NR 440.525(7)(b)1. 1. Method 5 or 17 shall be used to determine the particulate matter concentration. The sample volume for each run shall be at least 1.70 dscm (60 dscf). The sampling probe and filter holder of Method 5 may be operated without heaters if the gas stream being sampled is at ambient temperature. For gas streams above ambient temperature, the Method 5 sampling train shall be operated with a probe and filter temperature slightly above the effluent temperature, up to a maximum filter temperature of 121°C (250°F), in order to prevent water condensation on the filter.

NR 440.525(7)(b)2. 2. Method 9 and the procedures in s. NR 440.11 shall be used to determine opacity from stack emissions and process fugitive emissions. The observer shall read opacity only when emissions are clearly identified as emanating solely from the affected facility being observed.

NR 440.525(7)(c) (c) To comply with sub. (6) (c) the owner or operator shall use the monitoring devices in sub. (5) (a) and (b) to determine the pressure loss of the gas stream through the scrubber and scrubbing liquid flow rate at any time during each particulate matter run, and the average of the 3 determinations shall be computed.

NR 440.525 History History: Cr. Register, September, 1986, No. 369, eff. 10-1-86; renum. to be NR 440.525 and r. (6) (e), am. (2) (intro.), (g), (h), (3) (a) (intro.), 1. and (b), (4) (a), Register, September, 1990, No. 417, eff. 10-1-90; am. (6) (c), r. and recr. (7), Register, July, 1993, No. 451, eff. 8-1-93; CR 06-109: am. (2) (o), (3) (a) 1. and (6) (c) Register May 2008 No. 629, eff. 6-1-08.

NR 440.53 NR 440.53 Automobile and light-duty truck surface coating operations.

NR 440.53(1) (1) Applicability and designation of affected facility.

NR 440.53(1)(a) (a) The provisions of this section apply to the following affected facilities in an automobile or light-duty truck assembly plant: each prime coat operation, each guide coat operation and each topcoat operation.

NR 440.53(1)(b) (b) Exempt from the provisions of this section are operations used to coat plastic body components or all-plastic automobile or light-duty truck bodies on separate coating lines. The attachment of plastic body parts to a metal body before the body is coated does not cause the metal body coating operation to be exempted.

NR 440.53(1)(c) (c) Any facility under par. (a) that commences construction, reconstruction or modification after October 5, 1979 is subject to the requirements of this section.

NR 440.53(2) (2) Definitions and symbols.

NR 440.53(2)(a) (a) As used in this section, terms not defined in this paragraph have the meanings given in s. NR 440.02.

NR 440.53(2)(a)1. 1. “Applied coating solids” means the volume of dried or cured coating solids which is deposited and remains on the surface of the automobile or light-duty truck body.

NR 440.53(2)(a)2. 2. “Automobile” means a motor vehicle capable of carrying no more than 12 passengers.

NR 440.53(2)(a)3. 3. “Automobile and light-duty truck body” means the exterior surface of an automobile or light-duty truck including hoods, fenders, cargo boxes, doors and grill opening panels.

NR 440.53(2)(a)4. 4. “Bake oven” means a device that uses heat to dry or cure coatings.

NR 440.53(2)(a)5. 5. “Electrodeposition” or “EDP” means a method of applying a prime coat by which the automobile or light-duty truck body is submerged in a tank filled with coating material and an electrical field is used to effect the deposition of the coating material on the body.

NR 440.53(2)(a)6. 6. “Electrostatic spray application” means a spray application method that uses an electrical potential to increase the transfer efficiency of the coating solids. Electrostatic spray application can be used for prime coat, guide coat or topcoat operations.

NR 440.53(2)(a)6e. 6e. “Flashoff area” means the structure on automobile and light-duty truck assembly lines between the coating application system (dip tank or spray booth) and the bake oven.

NR 440.53(2)(a)6g. 6g. “Guide coat operation” means the guide coat spray booth, flashoff area and bake ovens which are used to apply and dry or cure a surface coating between the prime coat and topcoat operation on the components of automobile and light-duty truck bodies.

NR 440.53(2)(a)6k. 6k. “Light-duty truck” means any motor vehicle rated at 3,850 kilograms gross vehicle weight or less, designed mainly to transport property.

NR 440.53(2)(a)6p. 6p. “Plastic body” means an automobile or light-duty truck body constructed of synthetic organic material.

NR 440.53(2)(a)7. 7. “Plastic body component” means any component of an automobile or light-duty truck exterior surface constructed of synthetic organic material.

NR 440.53(2)(a)8. 8. “Prime coat operation” means the prime coat spray booth or dip tank, flashoff area and bake oven or ovens which are used to apply and dry or cure the initial coating on components of automobile or light-duty truck bodies.

NR 440.53(2)(a)9. 9. “Purge” or “line purge” means the coating material expelled from the spray system when clearing it.

NR 440.53(2)(a)10. 10. “Solventborne” means a coating which contains 5% or less water by weight in its volatile fraction.

NR 440.53(2)(a)11. 11. “Spray application” means a method of applying coatings by atomizing the coating material and directing the atomized material toward the part to be coated. Spray applications can be used for prime coat, guide coat and topcoat operations.

NR 440.53(2)(a)12. 12. “Spray booth” means a structure housing automatic or manual spray application equipment where prime coat, guide coat or topcoat is applied to components of automobile or light-duty truck bodies.

NR 440.53(2)(a)13. 13. “Surface coating operation” means any prime coat, guide coat or topcoat operation on an automobile or light-duty truck surface coating line.