Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 422 - Control Of Organic Compound EmissionsFrom Surface Coating, Printing And Asphalt Surfacing Operations
Section NR 422.125 - Wood furniture coating

Universal Citation: WI Admin Code ยง NR 422.125

Current through August 26, 2024

(1) APPLICABILITY.

(a) This section applies to the wood furniture finishing operations of any wood furniture manufacturing facility which is located in the county of Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan, Washington, or Waukesha, and whose maximum theoretical emissions of VOCs from all wood furniture finishing operations at the facility, including any related cleaning activities, is greater than or equal to 25 tons per year.

(b) This section applies, except for sub. (4m), to any wood furniture manufacturing facility which is located in the county of Kewaunee or Manitowoc, and whose maximum theoretical emissions of VOCs from all wood furniture finishing operations at the facility is greater than or equal to 25 tons per year.

(2) EMISSION LIMITATIONS. After September 1, 1996, no owner or operator of a wood furniture finishing operation may cause, allow or permit the emission of any VOCs in excess of the following limitations:

(a) General limits. Except as provided in par. (b), either of the following:
1. 0.8 kilograms per kilogram of solids (0.8 pounds per pound), as applied, for topcoats only.

Note: There is no restriction on the VOC content of the sealers used by those electing to comply under subd. 1.

2. 1.9 kilograms per kilogram of solids (1.9 pounds per pound), as applied, for sealers and 1.8 kilograms per kilogram of solids (1.8 pounds per pound), as applied, for topcoats.

(b) Acid-cured alkyd amino coatings. When the owner or operator is using acid-cured alkyd amino vinyl sealers or acid-cured alkyd amino conversion varnish topcoats, any of the following:
1. Where the sealer is an acid-cured alkyd amino vinyl sealer and the topcoat is an acid-cured alkyd amino conversion varnish topcoat, 2.3 kilograms per kilogram of solids (2.3 pounds per pound), as applied, for sealers and 2.0 kilograms per kilogram of solids (2.0 pounds per pound of solids), as applied, for topcoats.

2. Where the sealer is not an acid-cured alkyd amino vinyl sealer and the topcoat is an acid-cured alkyd amino conversion varnish topcoat, 1.9 kilograms per kilogram of solids (1.9 pounds per pound), as applied, for sealers and 2.0 kilograms per kilogram of solids (2.0 pounds per pound), as applied, for topcoats.

3. Where the sealer is an acid-cured alkyd amino vinyl sealer and the topcoat is not an acid-cured alkyd amino conversion varnish topcoat, 2.3 kilograms per kilogram of solids (2.3 pounds per pound), as applied, for sealers and 1.8 kilograms per kilogram of solids (1.8 pounds per pound), as applied, for topcoats.

(c) Strippable spray booth coatings. 0.8 kilograms per kilogram of solids (0.8 pounds per pound) for strippable spray booth coatings, as applied.

(3) COMPLIANCE METHODS.

(a) Emission averaging. In addition to using provisions of s. NR 422.04 or 425.05 to demonstrate compliance, an owner or operator may demonstrate compliance with the emission limitations in sub. (2) (a) and (b) by showing that total daily actual emissions calculated using Equation 2 are less than or equal to total daily allowable emissions calculated using Equation 1. See PDF for diagram

where:

EALL is the total daily allowable VOC emissions from all coatings involved in the average in kilograms (pounds)

i is a subscript denoting an individual coating

n is the number of different wood furniture coatings in an individual coating category applied during the actual production day and which are involved in the average

ATCi is the lowest of the applicable emission limitation under sub. (2) (a) or (b), or other limitation imposed by permit, order or approval, or the actual emission rate, as of the date of the notification required under sub. (5), in kilograms VOC per kilogram solids (pounds VOC per pound solids), for topcoat i as delivered to the applicator

STCi is the total amount of solids in topcoat i, in kilograms (pounds), delivered to the applicator during the actual production day

ASEi is the lowest of the applicable emission limitation under sub. (2) (a) or (b), or other limitation imposed by permit, order or approval, or the actual emission rate, as of the date of the notification required under sub. (5), in kilograms VOC per kilogram solids (pounds VOC per pound solids), for sealer i as delivered to the applicator

SSEi is the total amount of solids in sealer i, in kilograms (pounds), delivered to the applicator during the actual production day

AWCi is the lowest of 9.0, or other limitation imposed by permit, order or approval, or the actual emission rate, as of the date of the notification required under sub. (5), in kilograms VOC per kilogram solids (pounds VOC per pound solids), for washcoat i as delivered to the applicator

SWCi is the total amount of solids in washcoat i, in kilograms (pounds), delivered to the applicator during the actual production day

ABCi is the lowest of 1.2, or other limitation imposed by permit, order or approval, or the actual emission rate, as of the date of the notification required under sub. (5), in kilograms VOC per kilogram solids (pounds VOC per pound solids), for basecoat i as delivered to the applicator

SBCi is the total amount of solids in basecoat i, in kilograms (pounds), delivered to the applicator during the actual production day

ASTi is the lowest of 0.791, or other limitation imposed by permit, order or approval, or the actual emission rate, as of the date of the notification required under sub. (5), in kilograms VOC per liter (pounds VOC per gallon), for stain i as delivered to the applicator

SSTi is the total amount of stain i, in liters (gallons), delivered to the applicator during the actual production day

See PDF for diagram

where:

EACT is the total daily actual VOC emissions from all coatings involved in the average in kilograms (pounds)

i is a subscript denoting an individual coating

n is the number of different wood furniture coatings in an individual coating category applied during the actual production day and which are involved in the average

ATCi is the actual VOC content of topcoat i, in kilograms VOC per kilogram solids (pounds VOC per pound solids), as delivered to the applicator during the actual production day

STCi is the total amount of solids in topcoat i, in kilograms (pounds), delivered to the applicator during the actual production day

ASEi is the actual VOC content of sealer i, in kilograms VOC per kilogram solids (pounds VOC per pound solids), as delivered to the applicator during the actual production day

SSEi is the total amount of solids in sealer i, in kilograms (pounds), delivered to the applicator during the actual production day

AWCi is the actual VOC content of washcoat i, in kilograms VOC per kilogram solids (pounds VOC per pound solids), as delivered to the applicator during the actual production day

SWCi is the total amount of solids in washcoat i, in kilograms (pounds), delivered to the applicator during the actual production day

ABCi is the actual VOC content of basecoat i, in kilograms VOC per kilogram solids (pounds VOC per pound solids), as delivered to the applicator during the actual production day

SBCi is the total amount of solids in basecoat i, in kilograms (pounds), delivered to the applicator during the actual production day

ASTi is the actual VOC content of stain i, in kilograms VOC per liter (pounds VOC per gallon), as delivered to the applicator during the actual production day

SSTi is the total amount of stain i, in liters (gallons), delivered to the applicator during the actual production day

(b) Capture systems. Notwithstanding s. NR 422.04(4), an owner or operator demonstrating compliance with the emission limitations in sub. (2) as allowed under s. NR 422.04(2) (c) shall do all of the following:
1. Determine the overall control efficiency needed to demonstrate compliance daily using Equation 3.

R = ((C-E) / C X 100) (Equation 3)

where:

R is the overall efficiency of the control system needed to demonstrate compliance on a daily basis, expressed as a percentage

C is the highest VOC content of all coatings subject to this paragraph on any given day in kilograms per kilogram of coating solids (pounds per pound of coating solids), as applied

E is the emission limitation applicable to the coating in kilograms per kilogram of coating solids (pounds per pound of coating solids), as applied

2. Document that the value of C in Equation 3 is obtained from the VOC and solids content of the as applied finishing material.

3. Comply with the requirements, and determine the actual overall efficiency of the control device, using the procedures of ss. NR 439.055, 439.06, 439.07 and 439.075.

4. Demonstrate compliance when R as determined under subd. 1. is greater than or equal to the overall efficiency of the control device determined under subd. 3.

(4) APPLICATION TECHNOLOGY. After September 1, 1996, an owner or operator of a wood furniture manufacturing facility may use conventional air spray to apply finishing materials only under any of the following conditions:

(a) When applying finishing materials that have an as applied VOC content no greater than 1.0 kilogram per kilogram of solids (1.0 pound per pound of solids).

(b) When applying final touch-up and repair finishing materials.

(c) When using a control device to meet the applicable requirements of this section.

(4m) CLEANING MATERIAL WORK PRACTICES. Beginning on March 1, 2013, the owner or operator of a facility subject to this subsection shall do all of the following:

(a) Use cleaning materials containing no more than 8.0 % by weight VOC for cleaning spray booth components other than conveyors, continuous coaters and their enclosures, or metal or plastic filters.

(b) Store VOC-containing cleaning materials in closed containers.

(c) Collect all VOC-containing cleaning material used to clean spray guns and spray gun lines in a container and keep the container covered except when adding or removing material.

(d) Control emissions of VOC-containing cleaning material from washoff operations by doing both of the following:
1. Equipping the tank used for washoff operations with a cover and keeping the cover closed whenever the tank is not being used.

2. Minimizing dripping by tilting or rotating the part to drain as much cleaning material as possible into the tank.

(e) Use strippable spray booth materials containing no more than 0.8 pound of VOC per pound of solids, as applied.

(5) INITIAL COMPLIANCE CERTIFICATION AND NOTIFICATION REQUIREMENTS.

(a) Emission limitations. Any owner or operator subject to this section shall submit a written notification to the department within 60 days after the compliance deadline in sub. (2), or upon changing the method of operation when such a change would result in a change in the emission limitations applicable under sub. (2). The notification shall contain:
1. The name and location of the facility.

2. The name or identification number of all finishing operations subject to this section and the applicable emission limitations.

3. Certification that all wood furniture finishing operations are in compliance with the applicable emission limitations.

(b) Emission averaging. Any owner or operator of a wood furniture manufacturing facility achieving compliance with the emission limitations of sub. (2) by means of the emission averaging method allowed under sub. (3) (a) shall notify the department by 60 days prior to the compliance deadline in sub. (2), upon startup of a new finishing operation, or upon changing the method of compliance to sub. (3) (a). The notification shall contain:
1. The name and location of the facility.

2. The name or identification number of each coating which will participate in the average and the coating line or lines on which it will be applied.

3. A description of the method by which the owner or operator will measure or calculate the kilograms (pounds) of solids or liters (gallons) of finishing material applied each day.

4. An example of the format in which the records required under sub. (6) will be kept.

(6) RECORDKEEPING REQUIREMENTS. In addition to the applicable requirements in s. NR 439.04, any owner or operator subject to this section shall collect and record the following information for each coating line or finishing operation:

(a) A unique name or identification number for each affected finishing material and strippable spray booth coating.

(b) The VOC content of each affected finishing material, as applied, and each strippable spray booth coating, as applied, in units of kilograms VOC per kilogram of solids (pounds VOC per pound of solids).

(c) If compliance is being achieved under the provisions of sub. (3) (a), the total daily actual and allowable VOC emissions as calculated using the equations in sub. (3) (a) and all information used in the calculations.

(d) Notwithstanding s. NR 439.04(5) (e), if compliance is being achieved with the emission limitations in sub. (2) by the use of a control device, all of the following:
1. The overall efficiency of the control system needed to demonstrate compliance as determined under sub. (3) (b) on a daily basis.

2. The actual overall efficiency of the control system as determined under sub. (3) (b).

3. On a daily basis, the compliance status of all finishing operations achieving compliance under sub. (3) (b).

4. Control device monitoring data.

5. A log of operating times for the capture system, control device, monitoring devices and the associated coating line or operation.

6. The maintenance log for the capture system, control device and monitoring equipment detailing all routine and non- routine maintenance performed and including dates and duration of any outages.

"Maximum theoretical emissions" has the meaning given in s. NR 419.02(11).

Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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