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Mi is the mass of as-purchased coating material, i, applied in a month, kg
q is the number of different materials added to the coating material
Csij is the coating solids content of material, j, added to as-purchased coating material, i, expressed as a mass-fraction, kg/kg
Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg
NR 466.25(3)(b)2. 2. Calculate the as-applied organic HAP to coating solids ratio using Equation 3:
- See PDF for diagram PDF   (Equation 3)
where:
Hsi is the as-applied, organic HAP to coating solids ratio of coating material, i
Cahi is the monthly average, as-applied, organic HAP content of coating material, i, expressed as a mass fraction, kg/kg
Casi is the monthly average, as-applied, coating solids content of coating material, i, expressed as a mass fraction, kg/kg
NR 466.25(3)(c) (c) Monthly average organic HAP content of all coating materials as-applied is less than the mass percent limit in s. NR 466.23 (1) (b) 2. Demonstrate that the monthly average as-applied organic HAP content of all coating materials applied at an existing affected source is less than 0.04 kg organic HAP per kg of coating material applied, and all coating materials applied at a new affected source are less than 0.016 kg organic HAP per kg of coating material applied, as determined by Equation 4:
(Equation 4)
where:
HL is the monthly average, as-applied, organic HAP content of all coating materials applied, expressed as kg organic HAP per kg of coating material applied
p is the number of different coating materials applied in a month
Chi is the organic HAP content of coating material, i, as-purchased, expressed as a mass fraction, kg/kg
Mi is the mass of as-purchased coating material, i, applied in a month, kg
q is the number of different materials added to the coating material
Chij is the organic HAP content of material, j, added to as-purchased coating material, i, expressed as a mass fraction, kg/kg
Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg
Mvret is the mass of volatile matter retained in the coated web after curing or drying, or otherwise not emitted to the atmosphere, kg. The value of this term will be zero in all cases except where you choose to take into account the volatile matter retained in the coated web or otherwise not emitted to the atmosphere for the compliance demonstration procedures in this section.
NR 466.25(3)(d) (d) Monthly average organic HAP content of all coating materials as-applied is less than the mass fraction of coating solids limit in s. NR 466.23 (1) (b) 3. Demonstrate that the monthly average as-applied organic HAP content on the basis of coating solids applied of all coating materials applied at an existing affected source is less than 0.20 kg of organic HAP per kg of coating solids applied, and all coating materials applied at a new affected source are less than 0.08 kg of organic HAP per kg of coating solids applied, as determined by Equation 5:
(Equation 5)
where:
Hs is the monthly average, as-applied, organic HAP to coating solids ratio, kg of organic HAP per kg of coating solids applied
p is the number of different coating materials applied in a month
Chi is the organic HAP content of coating material, i, as-purchased, expressed as a mass fraction, kg/kg
Mi is the mass of as-purchased coating material, i, applied in a month, kg
q is the number of different materials added to the coating material
Chij is the organic HAP content of material, j, added to as-purchased coating material, i, expressed as a mass fraction, kg/kg
Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg
Mvret is the mass of volatile matter retained in the coated web after curing or drying, or otherwise not emitted to the atmosphere, kg. The value of this term will be zero in all cases except where you choose to take into account the volatile matter retained in the coated web or otherwise not emitted to the atmosphere for the compliance demonstration procedures in this section.
Csi is the coating solids content of coating material, i, expressed as a mass fraction, kg/kg
Csij is the coating solids content of material, j, added to as-purchased coating material, i, expressed as a mass-fraction, kg/kg
NR 466.25(3)(e) (e) Compliance. The affected source is in compliance with emission standards in s. NR 466.23 (1) (b) 2. or 3. if one of the following is met:
NR 466.25(3)(e)1. 1. The organic HAP content of each coating material as-applied at an existing affected source is no more than 0.04 kg of organic HAP per kg of coating material or 0.2 kg of organic HAP per kg of coating solids, and the organic HAP content of each coating material as-applied at a new affected source contains no more than 0.016 kg of organic HAP per kg of coating material or 0.08 kg of organic HAP per kg of coating solids.
NR 466.25(3)(e)2. 2. The monthly average organic HAP content of all as-applied coating materials at an existing affected source are no more than 0.04 kg of organic HAP per kg of coating material or 0.2 kg of organic HAP per kg of coating solids, and the monthly average organic HAP content of all as-applied coating materials at a new affected source is no more than 0.016 kg of organic HAP per kg of coating material or 0.08 kg of organic HAP per kg of coating solids.
NR 466.25(4) (4)Monthly allowable organic hap applied. Demonstrate that the total monthly organic HAP applied as determined by Equation 6 is less than the calculated equivalent allowable organic HAP as determined by Equation 13a or b in sub. (12) (e):
(Equation 6)
where:
Hm is the total monthly organic HAP applied, kg
p is the number of different coating materials applied in a month
Chi is the organic HAP content of coating material, i, as-purchased, expressed as a mass fraction, kg/kg
Mi is the mass of as-purchased coating material, i, applied in a month, kg
q is the number of different materials added to the coating material
Chij is the organic HAP content of material, j, added to as-purchased coating material, i, expressed as a mass fraction, kg/kg
Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg
Mvret is the mass of volatile matter retained in the coated web after curing or drying, or otherwise not emitted to the atmosphere, kg. The value of this term will be zero in all cases except where you choose to take into account the volatile matter retained in the coated web or otherwise not emitted to the atmosphere for the compliance demonstration procedures in this section.
NR 466.25(5) (5)Capture and control to reduce emissions to no more than allowable limit. To reduce emissions to no more than the allowable limit in s. NR 466.23 (1) (b) 1., operate a capture system and control device and demonstrate an overall organic HAP control efficiency of at least 95% at an existing affected source and at least 98% at a new affected source for each month, or operate a capture system and oxidizer so that an outlet organic HAP concentration of no greater than 20 ppmv by compound on a dry basis is achieved as long as the capture efficiency is 100% as detailed in s. NR 466.23 (1) (b) 4. Unless one of the cases described in par. (a), (b) or (c) applies to the affected source, you shall either demonstrate compliance in accordance with the procedure in sub. (9) when emissions from the affected source are controlled by a solvent recovery device, or the procedure in sub. (11) when emissions are controlled by an oxidizer or demonstrate compliance for a web coating line by operating each capture system and each control device and continuous parameter monitoring according to the procedures in sub. (10).
NR 466.25(5)(a) (a) If the affected source has only always-controlled work stations and operates more than one capture system or more than one control device, you shall demonstrate compliance in accordance with the provisions of either sub. (14) or (16).
NR 466.25(5)(b) (b) If the affected source operates one or more never-controlled work stations or one or more intermittently-controlled work stations, you shall demonstrate compliance in accordance with the provisions of sub. (14).
NR 466.25(5)(c) (c) An alternative method of demonstrating compliance with s. NR 466.23 (1) (b) 1. is the installation of a PTE around the web coating line that achieves 100% capture efficiency and ventilation of all organic HAP emissions from the total enclosure to an oxidizer with an outlet organic HAP concentration of no greater than 20 ppmv by compound on a dry basis. If this method is selected, you shall demonstrate compliance by following the procedures in subds. 1. and 2. Compliance is determined according to subd. 3.
NR 466.25(5)(c)1. 1. Demonstrate that a total enclosure is installed. An enclosure that meets the requirements in s. NR 466.24 (3) (f) 1. will be considered a total enclosure.
NR 466.25(5)(c)2. 2. Determine the organic HAP concentration at the outlet of your total enclosure using the procedures in subd. 2. a. or b.
NR 466.25(5)(c)2.a. a. Determine the control device efficiency using Equation 2 of s. NR 466.24 (3) and the applicable test methods and procedures specified in s. NR 466.24 (3) (e).
NR 466.25(5)(c)2.b. b. Use a CEMS to determine the organic HAP emission rate according to sub. (9) (b) 1. to 10.
NR 466.25(5)(c)3. 3. You are in compliance if the installation of a total enclosure is demonstrated and the organic HAP concentration at the outlet of the incinerator is demonstrated to be no greater than 20 ppmv by compound on a dry basis.
NR 466.25(6) (6)Capture and control to achieve mass fraction of coating solids applied limit. To achieve the mass fraction of coating solids applied limit in s. NR 466.23 (1) (b) 3., operate a capture system and control device and limit the organic HAP emission rate from an existing affected source to no more than 0.20 kg of organic HAP emitted per kg of coating solids applied, and from a new affected source to no more than 0.08 kg of organic HAP emitted per kg of coating solids applied as determined on a monthly average as-applied basis. If the affected source operates more than one capture system, more than one control device, one or more never-controlled work stations or one or more intermittently-controlled work stations, you shall demonstrate compliance in accordance with the provisions of sub. (14). Otherwise, you shall demonstrate compliance following the procedure in sub. (9) when emissions from the affected source are controlled by a solvent recovery device or the procedure in sub. (11) when emissions are controlled by an oxidizer.
NR 466.25(7) (7)Capture and control to achieve mass fraction limit. To achieve the mass fraction limit in s. NR 466.23 (1) (b) 2., operate a capture system and control device and limit the organic HAP emission rate to no more than 0.04 kg of organic HAP emitted per kg of coating material applied at an existing affected source, and no more than 0.016 kg of organic HAP emitted per kg of coating material applied at a new affected source as determined on a monthly average as-applied basis. If the affected source operates more than one capture system, more than one control device, one or more never-controlled work stations or one or more intermittently-controlled work stations, then you shall demonstrate compliance in accordance with the provisions of sub. (14). Otherwise, you shall demonstrate compliance following the procedure in sub. (9) when emissions from the affected source are controlled by a solvent recovery device or the procedure in sub. (11) when emissions are controlled by an oxidizer.
NR 466.25(8) (8)Capture and control to achieve allowable emission rate. Operate a capture system and control device and limit the monthly organic HAP emissions to less than the allowable emissions as calculated in accordance with sub. (12). If the affected source operates more than one capture system, more than one control device, one or more never-controlled work stations or one or more intermittently-controlled work stations, then you shall demonstrate compliance in accordance with the provisions of sub. (14). Otherwise, the owner or operator shall demonstrate compliance following the procedure in sub. (9) when emissions from the affected source are controlled by a solvent recovery device or the procedure in sub. (11) when emissions are controlled by an oxidizer.
NR 466.25(9) (9)Solvent recovery device compliance demonstration. If you use a solvent recovery device to control emissions, you shall show compliance by following the procedures in either par. (a) or (b):
NR 466.25(9)(a) (a) Liquid-liquid material balance. Perform a monthly liquid-liquid material balance as specified in subds. 1. to 5. and use the applicable equations in subds. 6. to 9. to convert the data to units of the selected compliance option in subs. (5) to (8). Compliance shall be determined in accordance with subd. 10.
NR 466.25(9)(a)1. 1. Determine the mass of each coating material applied on the web coating line or group of web coating lines controlled by a common solvent recovery device during the month.
NR 466.25(9)(a)2. 2. If demonstrating compliance on the basis of an organic HAP emission rate based on coating solids applied, an organic HAP emission rate based on coating material applied or emission of less than the calculated allowable organic HAP, determine the organic HAP content of each coating material as-applied during the month following the procedure in s. NR 466.24 (3) (c).
NR 466.25(9)(a)3. 3. Determine the volatile organic content of each coating material as-applied during the month following the procedure in s. NR 466.24 (3) (d).
NR 466.25(9)(a)4. 4. If demonstrating compliance on the basis of an organic HAP emission rate based on coating solids applied or emissions of less than the calculated allowable organic HAP, determine the coating solids content of each coating material applied during the month following the procedure in s. NR 466.24 (3) (d).
NR 466.25(9)(a)5. 5. Determine and monitor the amount of volatile organic matter recovered for the month according to the procedures in s. NR 466.24 (2) (d).
NR 466.25(9)(a)6. 6. Calculate the volatile organic matter collection and recovery efficiency using Equation 7:
(Equation 7)
where:
Rv is the organic volatile matter collection and recovery efficiency, percent
Mvr is the mass of volatile matter recovered in a month, kg
Mvret is the mass of volatile matter retained in the coated web after curing or drying, or otherwise not emitted to the atmosphere, kg. The value of this term will be zero in all cases except where you choose to take into account the volatile matter retained in the coated web or otherwise not emitted to the atmosphere for the compliance demonstration procedures in this section
p is the number of different coating materials applied in a month
Cvi is the volatile organic content of coating material, i, expressed as a mass fraction, kg/kg
Mi is the mass of as-purchased coating material, i, applied in a month, kg
q is the number of different materials added to the coating material
Cvij is the volatile organic content of material, j, added to as-purchased coating material, i, expressed as a mass fraction, kg/kg
Mij is the mass of material, j, added to as-purchased coating material, i, in a month, kg
NR 466.25(9)(a)7. 7. Calculate the organic HAP emitted during the month using Equation 8:
- See PDF for diagram PDF (Equation 8)
where:
He is the total monthly organic HAP emitted, kg
Rv is the organic volatile matter collection and recovery efficiency, percent
p is the number of different coating materials applied in a month
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.