Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 115 - CONTROL OF AIR POLLUTION FROM VOLATILE ORGANIC › Subchapter E - SOLVENT-USING PROCESSES › Division 7 - MISCELLANEOUS INDUSTRIAL ADHESIVES › Section 115.475 - Approved Test Methods and Testing Requirements

Current through Reg. 49, No. 28; July 12, 2024
The owner or operator shall demonstrate compliance with
						the volatile organic compounds (VOC) content limits in §
											115.473(a)
						of this title (relating to Control Requirements) 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)
					 of this title 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)
					 of this title 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.