Wisconsin Administrative Code › Department of Natural Resources › NR 400-499 - Environmental Protection - Air Pollution Control › Chapter NR 469 - Emission standards for hazardous air pollutants for halogenated solvent cleaning operations › Section NR 469.09 - Test methods

Current through June 24, 2024
(1) Except as provided in subs. (6) and (7)
				for continuous web cleaning machines, each owner or operator of a batch vapor
				or in-line solvent cleaning machine complying with an idling emission limit
				standard in s.
				NR
				469.04(2) (a) 2. or (b) 2. or (3) (a) 2. or (b)
				2. shall determine the idling emission rate
				of the solvent cleaning machine using Method 307 in Appendix A of 40 CFR part
				63, incorporated by reference in s.
				NR
				484.04.
(2) Except as provided in sub. (7) for
				continuous web cleaning machines, each owner or operator of a batch vapor or
				in-line solvent cleaning machine complying with s.
				NR 469.08
				shall on the first operating day of every month ensure that the solvent
				cleaning machine system contains only clean liquid solvent as defined in s.
				NR
				469.02(5). A fill line shall be
				indicated during the first month the measurements are made. The solvent level
				within the machine shall be returned to the same fill line each month,
				immediately prior to calculating monthly emissions as specified in sub. (3).
				The solvent cleaning machine does not have to be emptied and filled with fresh
				unused solvent prior to the calculations.
(3) Except as provided in subs. (6) and (7)
				for continuous web cleaning machines, each owner or operator of a batch vapor
				or in-line solvent cleaning machine complying with s.
				NR 469.08(1) (a) or
				(b) shall on the first operating day of the
				month comply with the requirements specified in pars. (a) to (c).
(a) Using the records of all solvent
				additions and deletions for the previous monthly reporting period required
				under s.
				NR 469.08(1) (a) 1. or (b)
				1., determine solvent emissions (Ei or En)
				using equation 2 for cleaning machines with a solvent/air interface and
				equation 3 for cleaning machines without a solvent/air interface.
See PDF
				  for diagram
See PDF
				  for diagram
where:
Ei is the total halogenated HAP
				  solvent emissions from the solvent cleaning machine during the most recent
				  monthly reporting period i, kilograms of solvent per square meter of
				  solvent/air interface area per month (pounds of solvent per square foot of
				  solvent/air interface area per month)
En is the total halogenated HAP
				  solvent emissions from the solvent cleaning machine during the most recent
				  monthly reporting period i, kilograms of solvent per month (pounds of solvent
				  per month)
SAi is the total amount of halogenated
				  HAP liquid solvent added to the solvent cleaning machine during the most recent
				  monthly reporting period i, kilograms of solvent per month (pounds of solvent
				  per month)
LSRi is the total amount of
				  halogenated HAP liquid solvent removed from the solvent cleaning machine during
				  the most recent monthly reporting period i, kilograms of solvent per month
				  (pounds of solvent per month)
SSRi is the total amount of
				  halogenated HAP solvent removed from the solvent cleaning machine in solid
				  waste, obtained as described in par. (b), during the most recent monthly
				  reporting period i, kilograms of solvent per month (pounds of solvent per
				  month)
AREAi is the solvent/air interface
				  area of the solvent cleaning machine, square meters, (square feet)
(b) Determine SSRi using the
				method specified in subd. 1. or 2.
1. From
				tests conducted using Method 25D in Appendix A of 40 CFR part 60, incorporated
				by reference in s.
				NR
				484.04.
2.
				By engineering calculations included in the compliance report, which is
				described in s.
				NR
				469.12(6).
(c) Determine the monthly rolling average,
				EA, for the 3-month period ending with the most recent reporting period using
				equation 4 for cleaning machines with a solvent/air interface or equation 5 for
				cleaning machines without a solvent/air interface.
See PDF
				  for diagram
See PDF
				  for diagram
where:
EAi is the average halogenated HAP
				  solvent emissions over the preceding 3 monthly reporting periods, kilograms of
				  solvent per square meter of solvent/air interface area per month (pounds of
				  solvent per square foot of solvent/air interface area per month)
EAn is the average halogenated HAP
				  solvent emissions over the preceding 3 monthly reporting periods, kilograms of
				  solvent per month (pounds of solvent per month)
Eij is the halogenated HAP solvent
				  emissions for each month (j) for the most recent 3 monthly reporting periods,
				  kilograms of solvent per square meter of solvent/air interface area per month
				  (pounds of solvent per square foot of solvent/air interface area per
				  month)
Enj is the halogenated HAP solvent
				  emissions for each month (j) for the most recent 3 monthly reporting periods,
				  kilograms of solvent per month (pounds of solvent per month)
j=1 is the most recent monthly reporting period
j=2 is the monthly reporting period immediately prior to
				  j=1
j=3 is the monthly reporting period immediately prior to
				  j=2