The owner or operator shall demonstrate compliance with the
volatile organic compounds (VOC) content limits in §115.473(a),
(e), or (f) of this title (relating to Control Requirements), as applicable,
by applying the following test methods, as appropriate. Where a test
method also inadvertently measures compounds that are exempt solvent,
an owner or operator may exclude the exempt solvent when determining
compliance with a VOC content limit. As an alternative to the test
methods in this section, the VOC content of an adhesive or adhesive
primer may be determined by using analytical data from the material
safety data sheet.
(1) Except for reactive adhesives, compliance with
the VOC content limits in §115.473(a), (e), or (f) of this title,
as applicable, must be determined using Method 24 (40 Code of Federal
Regulations (CFR) Part 60, Appendix A).
(2) Compliance with the VOC content limits for reactive
adhesives in §115.473(a), (e), or (f) of this title, as applicable,
must be determined using 40 CFR Part 63, Subpart PPPP, Appendix A,
(as amended through April 24, 2007 (72 FR 20237)).
(3) The owner or operator of an application process
subject to §115.473 of this title shall measure the capture efficiency
using the applicable procedures outlined in 40 CFR §52.741, Subpart
O, Appendix B (as amended through October 21, 1996 (61 FR 54559)).
These procedures are: Procedure T-Criteria for and Verification of
a Permanent or Temporary Total Enclosure; Procedure L - VOC Input;
Procedure G.2 - Captured VOC Emissions (Dilution Technique); Procedure
F.1 - Fugitive VOC Emissions from Temporary Enclosures; and Procedure
F.2 - Fugitive VOC Emissions from Building Enclosures.
(A) The following exemptions apply to capture efficiency
testing requirements.
(i) If a source installs a permanent total enclosure
that meets the specifications of Procedure T and that directs all
VOC to a control device, then the capture efficiency is assumed to
be 100%, and the source is exempted from capture efficiency testing
requirements. This does not exempt the source from performance of
any control device efficiency testing that may be required. In addition,
a source must demonstrate all criteria for a permanent total enclosure
are met during testing for control efficiency.
(ii) If a source uses a vapor control system designed
to collect and recover VOC (e.g., carbon adsorption system), an explicit
measurement of capture efficiency is not necessary if the following
conditions are met. The overall control efficiency of the system can
be determined by directly comparing the input liquid VOC to the recovered
liquid VOC. The general procedure for use in this situation is given
in 40 CFR §60.433 (as amended through October 17, 2000 (65 FR
61761)), with the following additional restrictions.
(I) The source must be able to equate solvent usage
with solvent recovery on a 24-hour (daily) basis, rather than a 30-day
weighted average. This verification must be done within 72 hours following
each 24-hour period of the 30-day period.
(II) The solvent recovery system (i.e., capture and
control system) must be dedicated to a single process line (e.g.,
one process line venting to a carbon adsorber system) or if the solvent
recovery system controls multiple process lines, the source must be
able to demonstrate that the overall control efficiency (i.e., the
total recovered solvent VOC divided by the sum of liquid VOC input
to all process lines venting to the control system) meets or exceeds
the most stringent standard applicable for any process line venting
to the control system.
(B) The capture efficiency must be calculated using
one of the following protocols referenced unless a suitable alternative
protocol is approved by the executive director and the United States
Environmental Protection Agency (EPA).
(i) Gas/gas method using temporary total enclosure
(TTE). The EPA specifications to determine whether a temporary enclosure
is considered a TTE are given in Procedure T. The capture efficiency
equation to be used for this protocol is:
Attached Graphic
(ii) Liquid/gas method using TTE. The EPA specifications
to determine whether a temporary enclosure is considered a TTE are
given in Procedure T. The capture efficiency equation to be used for
this protocol is:
Attached Graphic
(iii) Gas/gas method using the building or room enclosure
(BE) in which the affected source is located and in which the mass
of VOC captured and delivered to a control device and the mass of
fugitive VOC that escapes from BE are measured while operating only
the affected facility. All fans and blowers in the BE must be operating
as they would under normal production. The capture efficiency equation
to be used for this protocol is:
Attached Graphic
(iv) Liquid/gas method using a BE in which the mass
of liquid VOC input to process and the mass of fugitive VOC that escapes
from BE are measured while operating only the affected facility. All
fans and blowers in the BE must be operated as they would under normal
production. The capture efficiency equation to be used for this protocol
is:
Attached Graphic
(C) The operating parameters selected for monitoring
the capture system for compliance with the requirements in §115.478(a)
of this title (relating to Monitoring and Recordkeeping requirements)
must be monitored and recorded during the initial capture efficiency
testing and thereafter during facility operation. The executive director
may require a new capture efficiency test if the operating parameter
values change significantly from those recorded during the initial
capture efficiency test.
(4) In addition to the requirements of paragraph (3)
of this section, the owner or operator shall determine compliance
with §115.473(a)(2) of this title by applying the following test
methods, as appropriate:
(A) Methods 1 - 4 (40 CFR Part 60, Appendix A) for
determining flow rates, as necessary;
(B) Method 25 (40 CFR Part 60, Appendix A) for determining
total gaseous nonmethane organic emissions as carbon;
(C) Method 25A or 25B (40 CFR Part 60, Appendix A)
for determining total gaseous organic concentrations using flame ionization
or nondispersive infrared analysis; and
(D) additional performance test procedures described
in 40 CFR §60.444 (as amended through October 18, 1983 (48 FR
48375)).
(5) Minor modifications to the methods in paragraphs
(1) - (4) of this section may be approved by the executive director.
Methods other than those specified in paragraphs (1) - (4) of this
section may be used if approved by the executive director and validated
using Method 301 (40 CFR Part 63, Appendix A). For the purposes of
this paragraph, substitute "executive director" each place that Method
301 references "administrator."
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