Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 440 - Standards of performance for new stationary sources
Subchapter II - Standards of Performance
Section NR 440.644 - Rubber tire manufacturing industry
Universal Citation: WI Admin Code ยง NR 440.644
Current through August 26, 2024
(1) APPLICABILITY AND DESIGNATION OF AFFECTED FACILITIES.
(a)
The provisions of this section, except as provided in par. (b), apply to each
of the following affected facilities in rubber tire manufacturing plants that
commence construction, modification, or reconstruction after January 20, 1983:
each undertread cementing operation, each sidewall cementing operation, each
tread end cementing operation, each bead cementing operation, each green tire
spraying operation, each Michelin-A, each Michelin-B operation and each
Michelin-C automatic operation.
(b)
The owner or operator of each undertread cementing operation and each sidewall
cementing operation in rubber tire manufacturing plants that commenced
construction, modification or reconstruction after January 20, 1983, and on or
before September 15, 1987, may comply with the alternate provisions in sub. (3)
(b). This election shall be irreversible. The alternate provisions in sub. (3)
(b) do not apply to any undertread cementing operation or sidewall cementing
operation that is modified or reconstructed after September 15, 1987. The
affected facilities in this paragraph are subject to all applicable provisions
of this section.
(c) Although the
affected facilities listed under par. (a) are defined in reference to the
production of components of a "tire", as defined under sub. (2) (a), the
percent emission reduction requirements and VOC use cutoffs specified under
sub. (3) (a) 1., 2., 6., 7. b., 8., 9. and 10. refer to the total amount of VOC
used (the amount allocated to the affected facility), including the VOC used in
cements and organic solvent-based green tire spray materials for tire types not
listed in the definition of "tire".
(2) DEFINITIONS AND SYMBOLS.
(a) As used in this section, terms not
defined in this paragraph have the meanings given in s.
NR 440.02.
1. "Bead"
means rubber-covered strands of wire, wound into a circular form, which ensure
a seal between a tire and the rim of the wheel onto which the tire is
mounted.
2. "Bead cementing
operation" means the system that is used to apply cement to the bead rubber
before or after it is wound into its final circular form. A bead cementing
operation consists of a cement application station, such as a dip tank, spray
booth and nozzles, cement trough and roller or swab applicator, and all other
equipment necessary to apply cement to wound beads or bead rubber and to allow
evaporation of solvent from cemented beads.
3. "Component" means a piece of tread,
combined tread/sidewall, or separate sidewall rubber, or other rubber strip
that is combined into the sidewall of a finished tire.
4. "Drying area" means the area where VOC
from applied cement or green tire sprays is allowed to evaporate.
5. "Enclosure" means a structure that
surrounds a VOC (cement, solvent, or spray) application area and drying area,
and that captures and contains evaporated VOC and vents it to a control device.
Enclosures may have permanent and temporary openings.
6. "Green tire" means an assembled, uncured
tire.
7. "Green tire spraying
operation" means the system used to apply a mold release agent and lubricant to
the inside and outside of green tires to facilitate the curing process and to
prevent rubber from sticking to the curing press. A green tire spraying
operation consists of a booth where spraying is performed, the spray
application station, and related equipment such as the lubricant supply
system.
8. "Michelin-A operation"
means the operation identified as Michelin-A in the emission standards and
engineering division confidential file as referenced in Docket A-80-9, Entry
II-B-12.
9. "Michelin-B operation"
means the operation identified as Michelin-B in the emission standards and
engineering division confidential file as referenced in Docket A-80-9, Entry
II-B-12.
10. "Michelin-C-automatic
operation" means the operation identified as Michelin-C-automatic in the
emission standards and engineering division confidential file as referenced in
Docket A-80-9, Entry II-B-12.
11.
"Month" means a calendar month or a prespecified period of 28 days or 35 days
(utilizing a 4-4-5-week recordkeeping and reporting schedule).
12. "Organic solvent-based green tire spray"
means any mold release agent and lubricant applied to the inside or outside of
green tires that contains more than 12%, by weight, of VOC, as
sprayed.
13. "Permanent opening"
means an opening designed into an enclosure to allow tire components to pass
through the enclosure by conveyor or other mechanical means, to provide access
for permanent mechanical or electrical equipment, or to direct air flow into
the enclosure. A permanent opening is not equipped with a door or other means
of obstruction of air flow.
14.
"Sidewall cementing operation" means the system used to apply cement to a
continuous strip of sidewall component or any other continuous strip component
(except combined bead/sidewall component) that is incorporated into the
sidewall of a finished tire. A sidewall cementing operation consists of a
cement application station and all other equipment, such as the cement supply
system and feed and takeaway conveyors, necessary to apply cement to sidewall
strips or other continuous strip component (except combined tread/sidewall
component) and to allow evaporation of solvent from the cemented
rubber.
15. "Temporary opening"
means an opening into an enclosure that is equipped with a means of
obstruction, such as a door, window, or port, that is normally
closed.
16. "Tire" means any
agricultural, airplane, industrial, mobile home, light-duty truck or passenger
vehicle tire that has a bead diameter less than or equal to 0.5 m (19.7 in) and
a cross section dimension less than or equal to 0.325 m (12.8 in), and that is
mass produced in an assembly-line fashion.
17. "Tread end cementing operation" means the
system used to apply cement to one or both ends of the tread or combined
tread/sidewall component. A tread end cementing operation consists of a cement
application station and all other equipment, such as the cement supply system
and feed and takeaway conveyors, necessary to apply cement to tread ends and to
allow evaporation of solvent from the cemented tread ends.
18. "Undertread cementing operation" means
the system used to apply cement to a continuous strip of tread or combined
tread/sidewall component. An undertread cementing operation consists of a
cement application station and all other equipment, such as the cement supply
system and feed and takeaway conveyors, necessary to apply cement to tread or
combined tread/sidewall strips and to allow evaporation of solvent from the
cemented tread or combined tread/sidewall.
19. "VOC emission control device" means
equipment that destroys or recovers VOC.
20. "VOC emission reduction system" means a
system composed of an enclosure, hood, or other device for containment and
capture of VOC emissions and a VOC emission control device.
21. "Water-based green tire spray" means any
mold release agent and lubricant applied to the inside or outside of green
tires that contains 12% or less, by weight, of VOC as sprayed.
(b) As used in this section,
symbols not defined in this paragraph have the meanings given in s.
NR 440.03.
1. Bo is the
total number of beads cemented at a particular bead cementing affected facility
for a month.
2. Ca is the
concentration of VOC in gas stream in vents after a control device (parts per
million by volume).
3. Cb is the
concentration of VOC in gas stream in vents before a control device (parts per
million by volume).
4. Cf is the
concentration of VOC in each gas stream vented directly to the atmosphere from
an affected facility or from a temporary enclosure around an affected facility
(parts per million by volume).
5.
Dc is the density of cement or spray material (grams per liter (lb per
gallon)).
6. Dr is the density of
VOC recovered by an emission control device (grams per liter (lb per
gallon)).
7. E is the emission
control device efficiency, inlet versus outlet (fraction).
8. Fc is the capture efficiency, VOC captured
and routed to one control device versus total VOC used for an affected facility
(fraction).
9. Fo is the fraction
of total mass of VOC used in a month by all facilities served by a common
cement or spray material distribution system that is used by a particular
affected facility served by the common distribution system.
10. G is the monthly average mass of VOC used
per tire cemented or sprayed with a water-based green tire spray for a
particular affected facility (grams (lb) per tire).
11. Gb is the monthly average mass of VOC
used per bead cemented for a particular bead cementing affected facility (grams
(lb) per bead).
12. Lc is the
volume of cement or spray material used for a month (liters
(gallons)).
13. Lr is the volume of
VOC recovered by an emission control device for a month (liters
(gallons)).
14. M is the total mass
of VOC used for a month by all facilities served by a common cement or spray
material distribution system (grams (lb)).
15. Mo is the total mass of VOC used at an
affected facility for a month (grams (lb)).
16. Mr is the mass of VOC recovered by an
emission control device for a month (grams (lb)).
17. N is the mass of VOC emitted to the
atmosphere per tire cemented or sprayed with a water-based green tire spray for
an affected facility for a month (grams (lb) per tire).
18. Nb is the mass of VOC emitted per bead
cemented for an affected facility for a month (grams (lb) per bead).
19. Qa is the volumetric flow rate in vents
after a control device (dry standard cubic meters (dry standard cubic feet) per
hour).
20. Qb is the volumetric
flow rate in vents before a control device (dry standard cubic meters (dry
standard cubic feet) per hour).
21.
Qr is the volumetric flow rate of each stream vented directly to the atmosphere
from an affected facility or from a temporary enclosure around an affected
facility (dry standard cubic meters (dry standard cubic feet) per
hour).
22. R is the overall
efficiency of an emission reduction system (fraction).
23. Td is the total number of days in monthly
compliance period (days).
24. To is
the total number of tires cemented or sprayed with water-based green tire
sprays at a particular affected facility for a month.
25. Wo is the weight fraction of VOC in a
cement or spray material.
(3) STANDARDS FOR VOLATILE ORGANIC COMPOUNDS.
(a)
General. On and after
the date on which the initial performance test, required by s.
NR 440.08, is
completed, but no later than 180 days after initial startup, each owner or
operator subject to the provisions of this section shall comply with the
following conditions:
1. For each undertread
cementing operation:
a. Discharge into the
atmosphere no more than 25% of the VOC used (75% emission reduction) for each
month; or
b. Maintain total
(uncontrolled) VOC use less than or equal to the following levels, depending
upon the duration of the compliance period:
1) 3,870 kg (8,531 lb) of VOC per 28
days.
2) 4,010 kg (8,846 lb) of VOC
per 29 days.
3) 4,150 kg (9,149 lb)
of VOC per 30 days.
4) 4,280 kg
(9,436 lb) of VOC per 31 days.
5)
4,840 kg (10,670 lb) of VOC per 35 days.
2. For each sidewall cementing operation:
a. Discharge into the atmosphere no more than
25% of the VOC used (75% emission reduction) for each month; or
b. Maintain total (uncontrolled) VOC use less
than or equal to the following levels, depending upon the duration of the
compliance period:
1) 3,220 kg (7,099 lb) of
VOC per 28 days.
2) 3,340 kg (7,363
lb) of VOC per 29 days.
3) 3,450 kg
(7,606 lb) of VOC per 30 days.
4)
3,570 kg (7,870 lb) of VOC per 31 days.
5) 4,030 kg (8,885 lb) of VOC per 35
days.
3. For
each tread end cementing operation: Discharge into the atmosphere no more than
10 grams (0.022 lb) of VOC per tire cementing for each month.
4. For each bead cementing operation:
Discharge into the atmosphere no more than 5 grams (0.011 lb) of VOC per bead
cemented for each month.
5. For
each green tire spraying operation where only water-based sprays are used, do
both of the following:
a. Discharge into the
atmosphere no more than 1.2 grams (0.0026 lb) of VOC per tire sprayed with an
inside green tire spray for each month.
b. Discharge into the atmosphere no more than
9.3 grams (0.021 lb) of VOC per tire sprayed with an outside green tire spray
for each month.
6. For
each green tire spraying operation where only organic solvent-based sprays are
used:
a. Discharge into the atmosphere no
more than 25% of the VOC used (75% emission reduction) for each month;
or
b. Maintain total (uncontrolled)
VOC use less than or equal to the following levels, depending upon the duration
of the compliance period:
1) 3,220 kg (7,099
lb) of VOC per 28 days.
2) 3,340 kg
(7,363 lb) of VOC per 29 days.
3)
3,450 kg (7,606 lb) of VOC per 30 days.
4) 3,570 kg (7,870 lb) of VOC per 31
days.
5) 4,030 kg (8,885 lb) of VOC
per 35 days.
7. For each green tire spraying operation
where both water-based and organic solvent-based sprays are used, do both of
the following:
a. Discharge into the
atmosphere no more than 1.2 grams (0.0026 lb) of VOC per tire sprayed with a
water-based inside green tire spray for each month.
b. Discharge into the atmosphere no more than
9.3 grams (0.021 lb) of VOC per tire sprayed with a water-based outside green
tire spray for each month and do one of the following:
1) Discharge into the atmosphere no more than
25% of the VOC used in the organic solvent-based green tire sprays (75%
emission reduction) for each month.
2) Maintain total (uncontrolled) VOC use for
all organic solvent-based green tire sprays less than or equal to the levels
specified under subd. 6. b.
8. For each Michelin-A operation:
a. Discharge into the atmosphere no more than
35% of the VOC used (65% emission reduction) for each month; or
b. Maintain total (uncontrolled) VOC use less
than or equal to the following levels, depending upon the duration of the
compliance period:
1) 1,570 kg (3,461 lb) of
VOC per 28 days.
2) 1,630 kg (3,593
lb) of VOC per 29 days.
3) 1,690 kg
(3,726 lb) of VOC per 30 days.
4)
1,740 kg (3,836 lb) of VOC per 31 days.
5) 1,970 kg (4,343 lb) of VOC per 35
days.
9. For
each Michelin-B operation:
a. Discharge into
the atmosphere no more than 25% of the VOC used (75% emission reduction) for
each month; or
b. Maintain total
(uncontrolled) VOC use less than or equal to the levels specified below,
depending upon the duration of the compliance period:
1) 1,310 kg (2,888 lb) of VOC per 28
days.
2) 1,360 kg (2,998 lb) of VOC
per 29 days.
3) 1,400 kg (3,086 lb)
of VOC per 30 days.
4) 1,450 kg
(3,197 lb) of VOC per 31 days.
5)
1,640 kg (3,616 lb) of VOC per 35 days.
10. For each Michelin-C automatic operation:
a. Discharge into the atmosphere no more than
35% of the VOC used (65% emission reduction) for each month; or
b. Maintain total (uncontrolled) VOC use less
than or equal to the levels specified under par. (a) 8. b.
(b)
Alternate
standard. On and after the date on which the initial performance test,
required by s.
NR 440.08, is
completed, but no later than 180 days after September 19, 1989, no owner or
operator subject to the provisions in sub. (1) (b) may cause to be discharged
into the atmosphere more than 25 grams (0.055 lb) of VOC per tire processed for
each month if the operation uses 25 grams (0.055 lb) or less of VOC per tire
processed and does not employ a VOC emission reduction system.
(4) PERFORMANCE TEST AND COMPLIANCE PROVISIONS.
(a) Section
NR 440.08(4) does not apply to the
monthly performance test procedures required by this section. Section
NR 440.08(4) does apply to initial
performance tests and to the performance tests specified under par. (b) 2. and
3. Section
NR 440.08(6) does not apply when Method
24 of Appendix A, 40 CFR part 60, incorporated by reference in s.
NR 440.17, is used.
(b) Performance tests shall be conducted as
follows:
1. The owner or operator of an
affected facility shall conduct an initial performance test, as required under
s.
NR 440.08(1), except as described under
par. (j). The owner or operator of an affected facility shall thereafter
conduct a performance test each month except as described under subd. 4. and
pars. (g) and (j). Initial and monthly performance tests shall be conducted
according to the procedures in this subsection.
2. The owner or operator of an affected
facility who elects to use a VOC emission reduction system with a control
device that destroys VOC (e.g., incinerator), as described under pars. (f) and
(g), shall repeat the performance test when directed by the department or when
the owner or operator elects to operate the capture system or control device at
conditions different from the most recent determination of overall reduction
efficiency. The performance test shall be conducted in accordance with the
procedures described under par. (f) 2. a. to d.
3. The owner or operator of an affected
facility who seeks to comply with the equipment design and performance
specifications, as described under par. (j), shall repeat the performance test
when directed by the department or when the owner or operator elects to operate
the capture system or control device at conditions different from the most
recent determination of control device efficiency or measurement of capture
system retention time or face velocity. The performance test shall be conducted
in accordance with the procedures described under par. (f) 2. b.
4. The owner or operator of each tread end
cementing operation and each green tire spraying operation using only
water-based sprays (inside and outside or both) containing less than 1.0 % by
weight of VOC is not required to conduct a monthly performance test as
described in par. (d). In lieu of conducting a monthly performance test, the
owner or operator of each tread end cementing operation and each green tire
spraying operation shall submit formulation data or the results of Method 24
analysis annually to verify the VOC content of each tread end cement and each
green tire spray material, provided the spraying formulation has not changed
during the previous 12 months. If the spray material formulation changes,
formulation data or Method 24 analysis of the new spray shall be conducted to
determine the VOC content of the spray and reported within 30 days as required
under sub. (7) (j).
(c)
For each undertread cementing operation, each sidewall cementing operation,
each green tire spraying operation where organic solvent-based sprays are used,
each Michelin-A operation, each Michelin-B operation, and each Michelin-C
automatic operation where the owner or operator seeks to comply with the
uncontrolled monthly VOC use limits, the owner or operator shall use the
following procedure to determine compliance with the applicable (depending upon
duration of compliance period) uncontrolled monthly VOC use limit specified
under sub. (3) (a) 1. b., 2. b., 6. b., 7. b., 8. b., 9. b. and 10. b. If both
undertread cementing and sidewall cementing are performed at the same affected
facility during a month, then the kg/mo limit specified under sub. (3) (a) 1.
b. shall apply for that month.
1. Determine
the density and weight fraction VOC (including dilution VOC) of each cement or
green tire spray from its formulation or by analysis of the cement of green
tire spray using Method 24 of Appendix A of 40 CFR part 60, incorporated by
reference in s.
NR 440.17. If a dispute arises, the department may
require an owner or operator who used formulation data to analyze the cement or
green tire spray using Method 24 of Appendix A, 40 CFR part 60, incorporated by
reference in s.
NR 440.17.
2.
Calculate the total mass of VOC used at the affected facility for the month
(Mo) by the following procedure:
a. For each
affected facility for which cement or green tire spray is delivered in batch or
via a distribution system that serves only the affected facility:
where "a" equals the number of different cements or green tire sprays used during the month that are delivered in batch or via a distribution system that serves only a single affected facility.
b. For each affected facility for
which cement or green tire spray is delivered via a common distribution system
that also serves other affected or existing facilities:
1) Calculate the total mass of VOC used for
all of the facilities served by the common distribution system for the month
(M):
where "b" equals the number of different cements or green tire sprays used during the month that are delivered via a common distribution system that also serves other affected or existing facilities.
2) Determine the fraction (Fo) of
M used at the affected facility by comparing the production records and process
specifications for the material cemented or sprayed at the affected facility
for the month to the production records and process specifications for the
material cemented or sprayed at all other facilities served by the common
distribution system for the month or by another procedure acceptable to the
administrator.
3) Calculate the
total monthly mass of VOC used at the affected facility for the month (Mo): Mo
= MFo3. Determine the time duration of the monthly compliance period
(Td).
(d) For each tread end cementing operation
and each green tire spraying operation where water-based cements or sprays
containing 1.0%, by weight, of VOC or more are used (inside, outside, or both)
that do not use a VOC emission reduction system, the owner or operator shall
use the following procedure to determine compliance with the VOC emission per
tire limit specified under sub. (3) (a) 3., 5. a. and b. and 7. a. and b.
1. Determine the density and weight fraction
VOC as specified under par. (c) 1.
2. Calculate the total mass of VOC used at
the affected facility for the month (Mo) as specified under par. (c)
2.
3. Determine the total number of
tires cemented or sprayed at the affected facility for the month (To) by the
following procedure:
a. For a tread end
cementing operation, To equals the number of tread or combined tread/sidewall
components that receive an application of tread end cement for the
month.
b. For a green tire spraying
operation that uses water-based inside green tire sprays, To equals the number
of green tires that receive an application of water-based inside green tire
spray for the month.
c. For a green
tire spraying operation that uses water-based outside green tire sprays, To
equals the number of green tires that receive an application of water-based
outside green tire spray for the month.
4. Calculate the mass of VOC used per tire
cemented or sprayed at the affected facility for the month (G):
5.
Calculate the mass of VOC emitted per tire cemented or sprayed at the affected
facility for the month (N):
N = G
(e) For each bead cementing operation that
does not use a VOC emission reduction system, the owner or operator shall use
the following procedure to determine compliance with the VOC emission per bead
limit specified under sub. (3) (a) 4.
1.
Determine the density and weight fraction of VOC as specified under par. (c)
1.
2. Calculate the total mass of
VOC used at the affected facility for the month (Mo) as specified under par.
(c) 2.
3. Determine the number of
beads cemented at the affected facility during the month (Bo) using production
records; Bo equals the number of beads that receive an application of cement
for the month.
4. Calculate the
mass of VOC used per bead cemented at the affected facility for the month (Gb):
5.
Calculate the mass of VOC emitted per bead cemented at the affected facility
for the month (Nb): Nb = Gb
(f) For each tread end cementing operation
and each bead cementing operation that use a VOC emission reduction system with
a control device that destroys VOC (e.g., incinerator), the owner or operator
shall use the following procedure to determine compliance with the emission
limit specified under sub. (3) (a) 3. and 4.
1. Calculate the mass of VOC used per tire
cemented at the affected facility for the month (G), as specified under par.
(d) 1. to 4., or mass of VOC used per bead cemented at the affected facility
for the month (Gb), as specified under par. (e) 1. to 4.
2. Calculate the mass of VOC emitted per tire
cemented at the affected facility for the month (N) or mass of VOC emitted per
bead cemented for the affected facility for the month (Nb):
N = G(1 - R)
Nb = Gb(1 - R)
For the initial performance test, the overall reduction efficiency (R) shall be determined as prescribed under par. (f) 2. a. to d. After the initial performance test, the owner or operator may use the most recently determined overall reduction efficiency (R) for the performance test. No monthly performance tests are required. The performance test shall be repeated during conditions described under par. (b) 2.
a. The owner or operator of an affected
facility shall construct a temporary enclosure around the application and
drying areas during he performance test for the purpose of capturing fugitive
VOC emissions. The enclosure shall be maintained at a negative pressure to
ensure that all evaporated VOC are measurable. Determine the fraction (Fc) of
total VOC used at the affected facility that enter the control device:
where:
"m" is the number of vents from the affected facility to the control device
"n" is the number of vents from the affected facility to the atmosphere and form the temporary enclosure
b.
Determine the destruction efficiency of the control device (E) by using values
of the volumetric flow rate of each of the gas streams and the VOC content (as
carbon) of each of the gas streams in and out of control device:
where:
"m" is the number of vents from the affected facility to the control device
"p" is the number of vents after the control device
c. Determine the overall reduction
efficiency (R):
R = EFc
d. The owner or operator of an affected
facility may substitute the following procedure as an acceptable alternative to
the requirements prescribed under par. (f) 2. a. This alternative procedure is
acceptable only in cases where a single VOC is used and is present in the
capture system. The average capture efficiency value derived from a minimum of
3 runs shall constitute a test.
1) For each
run, ``i", measure the mass of the material containing a single VOC used. This
measurement shall be made using a scale that has both a calibration and a
readability to within 1% of the mass used during the fun. This measurement may
be made by filling the direct supply reservoir, for example, rollers, pumps,
hoses, to a marked level at the start of the run and then refilling to the same
mark from a more easily weighed container, for example, a separate supply drum,
at the end of the fun. The change in mass of the supply drum would equal the
mass of the material used in the run. If only the direct supply reservoir is
weighed, the amount of material in or on the related application equipment
shall be the same at the start and end of the run. All additions of VOC
containing material shall be properly accounted for in determining the mass of
material used during that run.
2)
For each run, "i", measure the mass of the material containing a single VOC
which is present in the direct supply reservoir and related application
equipment at the start of the run, unless the ending weight fraction VOC in the
material is greater than or equal to 98.5% of the starting weight fraction VOC
in the material, in which case, this measurement is not required. This
measurement may be made directly by emptying the direct supply reservoir and
related application equipment and then filling them to a marked level from an
easily weighed container, for example, a separate supply drum. The change in
mass of the supply drum would equal the mass of material in the filled direct
supply reservoir and related application equipment. Alternatively, this
measurement may be made by weighing the direct supply reservoir and related
application equipment at the start of the run and subtracting the mass of the
empty direct supply reservoir and related application equipment (tare
weight).
3) For each run, "i", the
starting weight fraction VOC in the material shall be determined by Method 24
analysis of a sample taken from the direct supply reservoir at the beginning of
the run.
4) For each run, "i", the
ending weight fraction VOC in the material shall be determined by Method 24
analysis of a sample taken from the direct supply reservoir at the end of the
run.
5) For each run, "i", in which
the ending weight fraction VOC in the material is greater than or equal to
98.5% of the starting weight fraction VOC in the material, calculate the mass
of the single VOC used (Mi) by multiplying the mass of the material used in the
run by the starting weight fraction VOC of the material used in the
run.
6) For each run, "i", in which
the ending weight fraction VOC in the material is less than 98.5 % of the
starting weight fraction VOC in the material, calculate the mass of the single
VOC used (Mi) as follows:
a) Calculate the
mass of VOC present in the direct supply reservoir and related application
equipment at the start of the run by multiplying the mass of material in the
direct supply reservoir and related application equipment at the start of the
run by the starting weight fraction VOC in the material for that run.
b) Calculate the mass of VOC present in the
direct supply reservoir and related application equipment at the end of the run
by multiplying the mass of material in the direct supply reservoir and related
application equipment at the end of the run by the ending weight fraction VOC
in the material for that run. The mass of material in the direct supply
reservoir and related application equipment at the end of the run shall be
calculated by subtracting the mass of material used in the run from the mass of
material in the direct supply reservoir and related application equipment at
the start of the run.
c) The mass
of the single VOC used (Mi) equals the mass of VOC present in the direct supply
reservoir and related application equipment at the start of the run minus the
mass of VOC present in the direct supply reservoir and related application
equipment at the end of the run.
7) If Method 25A is used to determine the
concentration of the single VOC in the capture system, then calculate the
capture efficiency (FCi) for each run, "i", as follows:
where:
Ci is the average concentration of the single VOC in the capture system during run "i" (parts per million by volume) corrected for background VOC
Note: See sub. (8) (a) 5.
W is the molecular weight of the single VOC, mg/mg-mole (lb/lb-mole)
V is the volume occupied by one mole of ideal gas at standard conditions (20°C, 760 mm Hg) on a wet basis, 2.405 x 10-5 m3/mg-mole (385.3 ft3/lb-mole)
Qi is the volumetric flow in in the capture system during run "i", on a wet basis, adjusted to standard conditions, m3 (ft3)
Note: See sub. (8) (a) 5.
106 is the ppm per unity
Mi is the mass of the single VOC used during run "i", mg (lb)
8) If Method 25 is
used to determine the concentration of the single VOC in the capture system,
then calculate the capture efficiency (FCi) for each run, "i", as follows:
where:
Ci is the average concentration of the single VOC in the capture system during run "i" (parts per million, as carbon, by volume) corrected for background VOC
Note: See sub. (8) (a) 5.
W is the molecular weight of the single VOC, mg/mg-mole (lb/lb-mole)
V is the volume occupied by one mole of ideal gas at standard conditions (20°C, 760 mm Hg) on a wet basis, 2.405 x 10-5 m3/mg-mole (385.3 ft3/lb-mole)
Qi is the volumetric flow in the capture system during run"i", on a wet basis, adjusted to standard conditions, m3 (ft3)
Note: See sub. (8) (a) 5.
106 is the ppm per unity
Mi is the mass in mg of the single VOC used during run "i"
NC is the number of carbon atoms in one molecule of the single VOC
9) Calculate the
average capture efficiency value, Fc, as follows:
where:
"n" equals the number of runs made in the test (n u3). In cases where an alternative procedure in this paragraph is used, the requirements in par. (f) 2. b. and c. remain unchanged
(g)
For each undertread cementing operation, each sidewall cementing operation,
each green tire spraying operation where organic solvent-based sprays are used,
each Michelin-A operation, each Michelin-B operation, and each
Michelin-C-automatic operation that use a VOC emission reduction system with a
control device that destroys VOC (e.g., incinerator), the owner or operator
shall use the following procedure to determine compliance with the percent
emission reduction requirement specified under sub. (3) (a) 1. a., 2. a., 6.
a., 7. b., 8. a., 9. a. and 10. a. For the initial performance test, the
overall reduction efficiency (R) shall be determined as prescribed under par.
(f) 2. a. to c. The performance test shall be repeated during conditions
described under par. (b) 2. No monthly performance tests are required.
(h) For each tread end cementing
operation and each bead cementing operation that uses a VOC emission reduction
system with a control device that recovers VOC (e.g., carbon adsorber), the
owner or operator shall use the following procedure to determine compliance
with the emission limit specified under sub. (3) (a) 3. and 4.
1. Calculate the mass of VOC used per tire
cemented at the affected facility for the month (G), as specified under par.
(d) 1. to 4., or the mass of VOC used per bead cemented at the affected
facility for the month (Gb) as specified under par. (e) 1. to 4.
2. Calculate the total mass of VOC recovered
from the affected facility for the month (Mr):
Mr = Lr Dr
3. Calculate the overall reduction efficiency
for the VOC emission reduction system (R) for the month:
4.
Calculate the mass of VOC emitted per tire cemented at the affected facility
for the month (N) or mass of VOC emitted per bead cemented at the affected
facility for the month (Nb):
(i) For each undertread cementing operation,
each sidewall cementing operation, each green tire spraying operation where
organic solvent-based sprays are used, each Michelin-A operation, each
Michelin-B operation, and each Michelin-C-automatic operation that use a VOC
emission reduction system with a control device that recovers VOC (e.g., carbon
adsorber), the owner or operator shall use the following procedure to determine
compliance with the percent reduction requirement specified under sub. (3) (a)
1. a., 2. a., 6. a., 7. b., 8. a., 9. a. and 10. a.
1. Determine the density and weight fraction
VOC as specified under par. (c) 1.
2. Calculate the total mass of VOC used at
the affected facility for the month (Mo) as described under par. (c)
2.
3. Calculate the total mass of
VOC recovered from the affected facility for the month (Mr) as described under
par. (h) 2.
4. Calculate the
overall reduction efficiency for the VOC emission reduction system (R) for the
month as described under par. (h) 3.
(j) Rather than seeking to demonstrate
compliance with the provisions of sub. (3) (a) 1. a., 2. a., 6. a., 7. b. or 9.
a. using the performance test procedures described under pars. (g) and (i), an
owner or operator of an undertread cementing operation, sidewall cementing
operation, green tire spraying operation where organic solvent-based sprays are
used, or Michelin-B operation that use a VOC emission reduction system, may
seek to demonstrate compliance by meeting the equipment design and performance
specifications listed under subds. 1., 2., and 4. to 6. or under subds. 1. and
3. to 6. and by conducting a control device efficiency performance test to
determine compliance as describe under subd. 7. The owner or operator shall
conduct this performance test of the control device efficiency no later than
180 days after initial startup of the affected facility, as specified under s.
NR 440.08(1). Meeting the capture system
design and performance specifications, in conjunction with operating a 95%
efficient control device, is an acceptable means of demonstrating compliance
with the standard. Therefore, the requirement for the initial performance test
on the enclosure, as specified under s.
NR 440.08(1), is waived. No monthly
performance tests are required.
1. For each
undertread cementing operation, each sidewall cementing operation, and each
Michelin-B operation, the cement application and drying area shall be contained
in an enclosure that meets the criteria specified under subds. 2., 4. and 5.
For each green tire spraying operation where organic solvent-based sprays are
used, the spray application and drying area shall be contained in an enclosure
that meets the criteria specified under subds. 3., 4. and 5.
2. The drying area shall be enclosed between
the application area and the water bath or to the extent necessary to contain
all tire components for at least 30 seconds after cement application, whichever
distance is less.
3. Sprayed green
tires shall remain in the enclosure for a minimum of 30 seconds after spray
application.
4. A minimum face
velocity of 30.5 meters (100 feet) per minute shall be maintained continuously
through each permanent opening into the enclosure when all temporary enclosure
openings are closed. The cross-sectional area of each permanent opening shall
be divided into at least 12 equal areas, and a velocity measurement shall be
performed at the centroid of each equal area with an anemometer or similar
velocity monitoring device; the face velocity of each permanent opening is the
average value of the velocity measurements taken. The monitoring device shall
be calibrated and operated according to the manufacturer's instructions.
Temporary enclosure openings shall remain closed at all time except when worker
access is necessary.
5. The total
area of all permanent openings into the enclosure may not exceed the area that
would be necessary to maintain the VOC concentration of the exhaust gas stream
at 25% of the lower explosive limit (LEL) under the following conditions:
a. The facility is operating at the maximum
solvent use rate;
b. The face
velocity through each permanent opening is 30.5 meters (100 feet) per
minute.
c. All temporary openings
are closed.
6. All
captured VOC are ducted to a VOC emission control device that is operated on a
continuous basis and that achieves at least a 95% destruction or recovery
efficiency.
7. The efficiency of
the control device (E) for the initial performance test shall be determined by
using values of the volumetric flow rate of each of the gas streams and the VOC
content (as carbon) of each of the gas streams in and out of the control device
as described under par. (f) 2. b. The control device efficiency shall be
redetermined during conditions specified under par. (b) 3.
(k) Each owner or operator of an affected
facility who initially elected to be subject to the applicable percent emission
reduction requirement specified under sub. (3) (a) 1. a., 2. a., 6. a., 7. b.,
8. a., 9. a. or 10. a. and who later seeks to comply with the applicable total
(uncontrolled) monthly VOC use limit specified under sub. (3) (a) 1. b., 2. b.,
6. b., 7. b., 8. b., 9. b. or 10. b. shall demonstrate, using the procedures
described under par. (c), that the total VOC use at the affected facility has
not exceeded the applicable total (uncontrolled) monthly VOC use limit during
each of the last 6 months of operation. The owner or operator shall be subject
to the applicable percent emission reduction requirement until the conditions
of this paragraph and sub. (7) (g) are satisfied.
(L) In determining compliance for each
undertread cementing operation, each sidewall cementing operation, each green
tire spraying operation, each Michelin-A operation, each Michelin-B operation,
and each Michelin-C-automatic operation, the owner or operator shall include
all the VOC used, recovered, or destroyed from cements and organic
solvent-based green tire sprays including those cements or sprays used for
tires other than those defined under sub. (2) (a).
(m) In determining compliance for each tread
end cementing operation, each bead cementing operation, and each green tire
spraying operation, the owner or operator shall include only those tires
defined under sub. (2) (a) when determining To and Bo.
(n) For each undertread cementing operation
and each sidewall cementing operation that does not use a VOC emission
reduction system, the owner or operator shall use the following procedure to
determine compliance with the VOC emission per tire limit specified in sub. (3)
(b):
1. Calculate the total mass of VOC (Mo)
used at the affected facility for the month by the following procedure.
a. For each affected facility for which
cement is delivered in batch or via a distribution system which serves only
that affected facility:
where:
"n" equals the number of different cements or sprays used during the month
b. For
each affected facility for which cement is delivered via a common distribution
system which also serves other affected or existing facilities:
1) Calculate the total mass (M) of VOC used
for all of the facilities served by the common distribution system for the
month:
where:
"n" equals the number of different cements or sprays used during the month
2)
Determine the fraction (Fo) of "M" used by the affected facility by comparing
the production records and process specifications for the material cemented at
the affected facility for the month to the production records and process
specifications for the material cemented at all other facilities served by the
common distribution system for the month or by another procedure acceptable to
the department.
3) Calculate the
total monthly mass of VOC (Mo) used at the affected facility:
Mo = MFo
2. Determine the total number of tires (To)
processed at the affected facility for the month by the following procedure:
a. For undertread cementing, To equals the
number of tread or combined tread/sidewall components which receive an
application of undertread cement.
b. For sidewall cementing, To equals the
number of sidewall components which receive an application of sidewall cement,
divided by 2.
3.
Calculate the mass of VOC used per tire processed (G) by the affected facility
for the month:
G = Mo/To
4. Calculate the mass of VOC emitted per tire
processed (N) for the affected facility for the month:
N = G
5. Where the value of the mass of VOC emitted per tire processed (N) is less than or equal to the VOC emission per tire limit specified under sub. (3) (b), the affected facility is in compliance.(5) MONITORING OF OPERATIONS.
(a) Each owner or
operator subject to the provisions of this section shall install, calibrate,
maintain, and operate according to manufacturer's specifications the following
equipment, unless alternative monitoring procedures or requirements are
approved for that facility by the department.
1. Where a thermal incinerator is used for
VOC emission reduction, a temperature monitoring device equipped with a
continuous recorder for the temperature of the gas stream in the combustion
zone of the incinerator. The temperature monitoring device shall have an
accuracy of 1% of the temperature being measured in °C or "0.5 °C,
whichever is greater.
2. Where a
catalytic incinerator is used for VOC emission reduction, temperature
monitoring devices, each equipped with a continuous recorder, for the
temperature in the gas stream immediately before and after the catalyst bed of
the incinerator. The temperature monitoring devices shall have an accuracy of
1% of the temperature being measured in °C or "0.5 °C, whichever is
greater. For an undertread cementing operation, sidewall cementing operation,
green tire spraying operation where organic solvent-based sprays are used or
Michelin-B operation where a carbon adsorber is used to meet the performance
requirements specified under sub. (4) (j) 6., an organics monitoring device
used to indicate the concentration level or organic compounds based on a
detection principle such as infrared, photoionization, or thermal conductivity,
equipped with a continuous recorder, for the outlet of the carbon
bed.
(b) An owner or
operator of an undertread cementing operation, sidewall cementing operation,
green tire spraying operation where organic solvent-based sprays are used, or
Michelin-B operation where a VOC recovery device other than a carbon adsorber
is used to meet the performance requirement specified under sub. (4) (j) 6.
shall provide to the department information describing the operation of the
control device and the process parameters which would indicate proper operation
and maintenance of the device. The department may request further information
and shall specify appropriate monitoring procedures or requirements.
(6) RECORDKEEPING REQUIREMENTS.
(a) Each owner or operator of an affected
facility that uses a thermal incinerator shall maintain continuous records of
the temperature of the gas stream in the combustion zone of the incinerator and
records of all 3-hour periods of operation for which the average temperature of
the gas stream in the combustion zone was more than 28 °C (50 °F) below
the combustion zone temperature measured during the most recent determination
of the destruction efficiency of the thermal incinerator that demonstrated that
the affected facility was in compliance.
(b) Each owner or operator of an affected
facility that uses a catalytic incinerator shall maintain all of the following:
1. Continuous records of the temperature of
the gas stream both upstream and downstream of the catalyst bed of the
incinerator,
2. Records of all
3-hour periods of operation of which the average temperature measured before
the catalyst bed is more than 28 °C (50°F) below the gas stream
temperature measured before the catalyst bed during the most recent
determination of destruction efficiency of the catalytic incinerator that
demonstrated that the affected facility was in compliance.
3. Records of all 3-hour periods for which
the average temperature difference across the catalyst bed is less than 80% of
the temperature difference measured during the most recent determination of the
destruction efficiency of the catalytic incinerator that demonstrated that the
affected facility was in compliance.
(c) Each owner or operator of an undertread
cementing operation, sidewall cementing operation, green tire spraying
operation where organic solvent-based sprays are used, or Michelin-B operation
that uses a carbon adsorber to meet the requirements specified under sub. (4)
(j) 6. shall maintain continuous records of all 3-hour periods of operation
during which the average VOC concentration level or reading of organics in the
exhaust gases is more than 20% greater than the exhaust gas concentration level
or reading measured by the organics monitoring device during the most recent
determination of the recovery efficiency of the carbon adsorber that
demonstrated that the affected facility was in compliance.
(d) Each owner or operator of an undertread
cementing operation, sidewall cementing operation, green tires spraying
operation where organic solvent-based sprays are used, Michelin-A operation,
Michelin-B operation, or Michelin-C- automatic operation who seeks to comply
with a specified VOC monthly usage limit shall maintain records of monthly VOC
use and the number of days in each compliance period.
(e) Each owner or operator that is required
to conduct monthly performance tests, as specified under sub. (4) (b) 1., shall
maintain records of the results of all monthly tests.
(f) Each owner or operator of a tread end
cementing operation and green tire spraying operation using water-based cements
or sprays containing less than 1.0 % by weight of VOC, as specified under sub.
(4) (b) 4., shall maintain records of formulation data or the results of Method
24 analysis conducted to verify the VOC content of the spray.
(7) REPORTING REQUIREMENTS.
(a) Each owner or operator subject to the
provisions of this section shall provide a written report to the department
declaring for each undertread cementing operation, each sidewall cementing
operation, each green tire spraying operation where organic solvent-based
sprays are used, each Michelin-A operation, each Michelin-B operation, and each
Michelin-C-automatic operation the emission limit the owner or operator intends
to comply with and the compliance method, where sub. (4) (j) is applicable, to
be employed.
(b) Each owner or
operator subject to the provisions of this section shall specify the monthly
schedule (each calendar month or a 4-4-5-week schedule) to be used in making
compliance determinations.
(c) Each
owner or operator subject to the provision of this section shall report the
results of all initial performance tests, as required under s.
NR 440.08(1), and the results of the
performance test required under sub. (4) (b) 2. and 3. The following data shall
be included in the report for each of the performance tests:
1. For each affected facility for which the
owner or operator seeks to comply with a VOC monthly usage limit specified
under sub. (3) (a): the monthly mass of VOC used (Mo) and the number of days in
the compliance period (Td).
2. For
each affected facility that seeks to comply with a VOC emission limit per tire
or per bead specified under sub. (3) (a) without the use of a VOC emission
reduction system: the mass of VOC used (Mo), the number of tires cemented or
sprayed (To), the mass of VOC emitted per tire cemented or sprayed (N), the
number of beads cemented (Bo), and the mass of VOC emitted per bead cemented
(Nb).
3. For each affected facility
that uses a VOC emission reduction system with a control device that destroys
VOC (e.g., incinerator) to comply with a VOC emission limit per tire or per
bead specified under sub. (3) (a): the mass of VOC used (Mo), the number of
tires cemented or sprayed (To), the mass of VOC emitted per tire cemented or
sprayed (N), the number of beads cemented (Bo), the mass of VOC emitted per
bead cemented (Nb), the mass of VOC used per tire cemented or sprayed (G), the
mass of VOC per bead cemented (Gb), the emission control device efficiency (E),
the capture system efficiency (Fc), the face velocity through each permanent
opening for the capture system with the temporary openings closed, and the
overall system emission reduction (R).
4. For each affected facility that uses a VOC
emission reduction system with a control device that destroys VOC (e.g.,
incinerator) to comply with a percent emission reduction requirement specified
under sub. (3) (a): the emission control device efficiency (E), the capture
system efficiency (Fo), the face velocity through each permanent opening in the
computer system with the temporary openings closed, and the overall system
emission reduction (R).
5. For each
affected facility that uses a carbon adsorber to comply with a VOC emission
limit per tire or per bead specified under sub. (3) (a): the mass of VOC used
(Mo), the number of tires cemented or sprayed (To), the mass of VOC used per
tire cemented or sprayed (G), the number of beads cemented (Bo), the mass of
VOC used per bead (Gb), the mass of VOC recovered (Mr), the overall system
emission reduction (R), the mass of VOC emitted per tire cemented or sprayed
(N), and the mass of VOC emitted per bead cemented (Nb).
6. For each affected facility that uses a VOC
emission reduction system with a control device that recovers VOC (e.g., carbon
adsorber) to comply with a percent emission reduction requirement specified
under sub. (3) (a): the mass of VOC used (Mo), the mass of VOC recovered (Mr),
and the overall system emission reduction (R).
7. For each affected facility that elects to
comply with the alternate limit specified under sub. (3) (b): The mass VOC used
(Mo), the number of tires processed (To), and the mass of VOC emitted per tire
processed (N).
(d) Each
owner or operator of an undertread cementing operation, sidewall cementing
operation, green tire spraying operation where organic solvent-based sprays are
used, or Michelin-B operation who seeks to comply with the requirements
described under sub. (4) (j) shall include in the initial compliance report a
statement specifying, in detail, how each of the equipment design and
performance specifications has been met. The initial compliance report also
shall include the following data: the emission control device efficiency (E),
the face velocity through each permanent enclosure opening with all temporary
enclosure openings closed, the total area of all permanent enclosure openings,
the total area of all temporary enclosure openings, the maximum solvent use
rate (kg/hr or lb/hr), the types of VOC used, the lower explosive limit (LEL)
for each VOC used, and the length of time each component is enclosed after
application of cement or spray material.
(e) Each owner or operator of an affected
facility shall include the following data measured by the required monitoring
devices, as applicable, in the report for each performance test specified under
par. (c):
1. The average combustion
temperature measured at least every 15 minutes and averaged over the
performance test period of incinerator destruction efficiency for each thermal
incinerator.
2. The average
temperature before and after the catalyst bed measured at least every 15
minutes and averaged over the performance test period of incinerator
destruction efficiency for each catalytic incinerator.
3. The concentration level or reading
indicated by the organics monitoring device at the outlet of the adsorber,
measured at least every 15 minutes and averaged over the performance test
period of carbon adsorber recovery efficiency while the vent stream is normally
routed and constituted.
4. The
appropriate data to be specified by the department where a VOC recovery device
other than a carbon adsorber is used.
(f) Once every 6 months each owner or
operator subject to the provisions of sub. (6) shall report, as applicable:
1. Each monthly average VOC emission rate
that exceeds the VOC emission limit per tire or per bead specified under sub.
(3) (a), as applicable for the affected facility.
2. Each monthly average VOC use rate that
exceeds the monthly VOC usage limit specified under sub. (3) (a) as applicable
for the affected facility.
3. Each
monthly average VOC emission reduction efficiency for a VOC recovery device
(e.g., carbon adsorber) less than the percent efficiency limit specified under
sub. (3) (a) as applicable for the affected facility.
4. Each 3-hour period of operation for which
the average temperature of the gas stream in the combustion zone of a thermal
incinerator, as measured by the temperature monitoring device, is more than 28
°C (50°F) below the combustion zone temperature measured during the
most recent determination of the destruction efficiency of the thermal
incinerator that demonstrated that the affected facility was in
compliance.
5. Each 3-hour period
of operation for which the average temperature of the gas stream immediately
before the catalyst bed of a catalytic incinerator, as measured by the
temperature monitoring device, is more than 28 °C (50 °F) below the gas
stream temperature measured before the catalyst bed during the most recent
determination of the destruction efficiency of the catalyst incinerator that
demonstrated that the affected facility was in compliance, and any 3-hour
period of which the average temperature difference across the catalyst bed
(i.e., the difference between the temperatures of the gas stream immediately
before and after the catalyst bed), as measured by the temperature monitoring
device, is less than 80% of the temperature difference measured during the most
recent determination of the destruction efficiency of the catalytic incinerator
that demonstrated that the affected facility was in compliance.
6. Each 3-hour period of operation during
which the average concentration level or reading of VOCs in the exhaust gases
from a carbon adsorber is more than 20% greater than the exhaust gas
concentration level or reading measured by the organics monitoring device
during the most recent determination of the recovery efficiency of the carbon
adsorber that demonstrated that the affected facility was in
compliance.
(g) Each
owner or operator of an affected facility who initially elected to be subject
to the applicable percent emission reduction requirement specified under sub.
(3) (a) and who later seeks to comply with the applicable total (uncontrolled)
monthly VOC use limits specified under sub. (3) (a) and who has satisfied the
provision specified under sub. (4) (k) shall furnish the department written
notification no less than 30 days in advance of the date when the owner or
operator intends to be subject to the applicable VOC use limit instead of the
applicable percent emission reduction requirement.
(i) The owner or operator of each undertread
cementing operation and each sidewall cementing operation who qualifies for the
alternate provisions as described in sub. (3) (b), shall furnish the department
written notification of the election no less than 60 days after September 19,
1989.
(j) The owner or operator of
each tread end cementing operation and each green tire spraying (inside,
outside, or both) operation using water-based sprays containing less than 1.0
%, by weight, of VOC as described in sub. (4) (b) 1. shall furnish the
department, within 60 days initially and annually thereafter, formulation data
or Method 24 results to verify the VOC content of the water-based sprays in
use. If the spray formulation changes before the end of the 12-month period,
formulation data or Method 24 results to verify the VOC content of the spray
shall be reported within 30 days of the change.
(8) TEST METHODS AND PROCEDURES.
(a) The test methods in Appendix A, of 40 CFR
part 60, incorporated by reference in s.
NR 440.17, except as provided under s.
NR 440.08(2), shall be used to determine
compliance with sub. (3) (a) as follows:
1.
Method 24 or formulation data for the determination of the VOC content of
cements or green tire spray materials. In the event of dispute, Method 24 shall
be the reference method. For Method 24, the cement or green tire spray sample
shall be a 1-liter sample collected in a 1-liter container at a point where the
sample will be representative of the material as applied in the affected
facility.
2. Method 25 as the
reference method for the determination of VOC concentrations in each stack,
both entering and leaving an emission control device. The owner or operator
shall notify the department at least 30 days in advance of any test by Method
25. For Method 25, the sampling time for each of 3 runs shall be at least one
hour. Method 1 shall be used to select the sampling site, and the sampling
point shall be the centroid of the duct or at a point no closer to the walls
than one meter (3.3 feet). The minimum sample volume shall be 0.003 dry
standard cubic meter (dscm) (0.11 dry standard cubic feet (dscf)) except that
shorter sampling times or smaller volumes, when necessitated by process
variables or other factors, may be approved by the department.
3. Method 2, 2A, 2C, or 2D, as appropriate,
as the reference method for determination of the flow rate of the stack gas.
The measurement site shall be the same as the Method 25 sampling. A velocity
traverse shall be made once per run within the hour that the Method 25 sample
is taken.
4. Method 4 for
determination of stack gas moisture.
5. Method 25 or Method 25A for determination
of the VOC concentration in a capture system prior to a control device when
only a single VOC is present, as described in sub. (4) (f) 2. d. 7) and 8). The
owner or operator shall notify the department at least 30 days in advance of
any test by either Method 25 or Method 25A. Method 1 shall be used to select
the sampling site and the sampling point shall be the centroid of the duct or
at a point no closer to the walls than 1 one meter (3.3 feet). Method 2, 2A, 2C
or 2D, as appropriate, shall be used as the test method for the concurrent
determination of gas flow rate in the capture system.
a. For Method 25, the sampling time for each
run shall be at least 1 hour. For each run, a concurrent sample shall be taken
immediately upwind of the application area to determine the background VOC
concentration of air drawn into the capture system. Subtract this reading from
the reading obtained in the capture system for that run. The minimum sample
volume shall be 0.003 dscm (0.11 dscf) except that shorter sampling times or
smaller volumes, when necessitated by process variable or other factors, may be
approved by the department. Use Method 3 to determine the moisture content of
the stack gas.
b. For Method 25A,
the sampling time for each run shall be at least 1 hour. Instrument calibration
shall be performed by the procedure given in Method 25A using the single VOC
present in the capture system. A different calibration gas may be used if the
results are corrected using an experimentally determined response factor
comparing the alternative calibration gas to the single VOC used in the
process. After the instrument has been calibrated, determine the background VOC
concentration of the air drawn into the capture system immediately upwind of
the application area for each run. The instrument does not need to recalibrated
for the background measurement. Subtract this reading from the reading obtained
in the capture system for that run. The Method 25A results shall only be used
in the alternative procedure for determination of capture efficiency described
under sub. (4) (f) 2. d. 7).
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