NR 440.63(2)(b)19.19. Qa is the volumetric flow rate of each gas stream leaving the control device and entering the atmosphere (dry standard cubic meters per hour).
NR 440.63(2)(b)20.20. Qbis the volumetric flow rate of each gas stream entering the control device (dry standard cubic meters per hour).
NR 440.63(2)(b)21.21. R is the overall emission reduction efficiency for an affected facility (fraction).
NR 440.63(2)(b)22.22. Se is the fraction of VOC in coating and diluent VOC-solvent emitted at the coater and flashoff area for a coating operation.
NR 440.63(2)(b)23.23. Sh is the fraction of VOC in coating and diluent solvent emitted at the cure oven for a coating operation.
NR 440.63(2)(b)24.24. Vs is the proportion of solids in each coating, as received (fraction by volume).
NR 440.63(2)(b)25.25. Wo is the proportion of VOC in each coating, as received (fraction by weight).
NR 440.63(3)(3)Standards for volatile organic compounds. On or after the date on which the initial performance test required by s. NR 440.08 (1) is completed, no owner or operator subject to the provisions of this section may discharge or cause the discharge of VOC emissions to the atmosphere that exceed the following volume-weighted calendar-month average emissions:
NR 440.63(3)(a)(a) 0.29 kilogram of VOC per liter of coating solids (2.4 pounds per gallon) from each two-piece can exterior base coating operation, except clear base coat;
NR 440.63(3)(b)(b) 0.46 kilogram of VOC per liter of coating solids (3.8 pounds per gallon) from each two-piece can clear base coating operation and from each overvarnish coating operation; and
NR 440.63(3)(c)(c) 0.89 kilogram of VOC per liter of coating solids (7.4 pounds per gallon) from each two-piece can inside spray coating operation.
NR 440.63(4)(4)Performance test and compliance provisions.
NR 440.63(4)(a)(a) Section NR 440.08 (4) does not apply to monthly performance tests and s. NR 440.08 (6) does not apply to the performance test procedures required by this section.
NR 440.63(4)(b)(b) The owner or operator of an affected facility shall conduct an initial performance test as required under s. NR 440.08 (1) and thereafter a performance test each calendar month for each affected facility.
NR 440.63(4)(b)1.1. The owner or operator shall use the following procedures for each affected facility that does not use a capture system and a control device to comply with the emission limit specified under sub. (3). The owner or operator shall determine the VOC-content of the coatings from formulation data supplied by the manufacturer of the coating or by an analysis of each coating as received, using Method 24 of 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1). The department may require the owner or operator who uses formulation data supplied by the manufacturer of the coating to determine the VOC content of coatings using Method 24 or an equivalent or alternative method. The owner or operator shall determine from company records the volume of coating and the mass of VOC-solvent added to coatings. If a common coating distribution system serves more than one affected facility or serves both affected and existing facilities the owner or operator shall estimate the volume of coating used at each facility by using the average dry weight of coating, number of cans and size of cans being processed by each affected and existing facility or by other procedures acceptable to the department.
NR 440.63(4)(b)1.a.a. Calculate the volume-weighted average of the total mass of VOC per volume of coating solids used during the calendar month for each affected facility, except as provided under subd. 1. d. The volume-weighted average of the total mass of VOC per volume of coating solids used each calendar month will be determined by the following procedures.
1) Calculate the mass of VOC used (Mo+ Md) during the calendar month for the affected facility by the following equation:
( LdjDdj will be zero if no VOC solvent is added to the coatings, as received.)
where:
n is the number of different coatings used during the calendar month and
m is the number of different diluent VOC-solvents used during the calendar month
2) Calculate the total volume of coating solids used (Ls) in the calendar month for the affected facility by the following equation:
where n is the number of different coatings used during the calendar month
3) Calculate the volume-weighted average mass of VOC per volume of solids used (G) during the calendar month for the affected facility by the following equation:
NR 440.63(4)(b)1.b.b. Calculate the volume-weighted average of VOC emissions discharged to the atmosphere (N) during the calendar month for the affected facility by the following equation:
N = G
NR 440.63(4)(b)1.c.c. Where the value of the volume-weighted average mass of VOC per volume of solids discharged to the atmosphere (N) is equal to or less than the applicable emission limit specified under sub. (3), the affected facility is in compliance.
NR 440.63(4)(b)1.d.d. If each individual coating used by an affected facility has a VOC content equal to or less than the limit specified under sub. (3) the affected facility is in compliance provided no VOC-solvents are added to the coating during distribution or application.