In determining whether to grant approval to use Method 23, the Administrator may consider factors including whether dioxin/furan were detected at levels substantially below the I.A.5.a.1.b.2 §63.1208(b)(1)(i)(B)(2) emission standard in previous testing, and whether previous Method 0023 analyses detected low levels of dioxin/furan in the front half of the sampling train. Sources that emit carbonaceous particulate matter, such as coal-fired boilers, and sources equipped with activated carbon injection, will be deemed not suitable for use of Method 23 unless §63.1208(b)(1)(i)(B)(3) I.A.5.a.1.b.3 the source documents that there would not be a significant improvement in quality assurance with Method 0023A. The source must sample for a minimum of three hours, and the source must collect a minimum §63.1208(b)(1)(ii) I.A.5.a.1.c sample volume of 2.5 dscm. The source may assume that nondetects are I.A.5.a.1.d §63.1208(b)(1)(iii) present at zero concentration. Metals. The source must use Method 29, provided in appendix A, part 60 of this chapter, to demonstrate compliance with emission standard 1.A.5.a.2 §§63.1208(b)(2) - (4) for cadmium and lead (combined); and arsenic, beryllium, and chromium (combined); and mercury. 1.A.5.a.3 Hydrogen chloride and chlorine gas §63.1208(b)(5) Compliance with MACT standards.. To determine compliance with the emission standard for 1.A.5.a.3.a §63.1208(b)(5)(i) hydrogen chloride and chlorine gas (combined), the source must use: Method 26/26A as provided in appendix A, part 1.A.5.a.3.a.1 §63.1208(b)(5)(i)(A) 60 of this chapter; or
I.A.5.a.1.b.2 In determining whether to grant approval to use Method 23, the Administrator may consider factors including whether dioxin/furan were detected at levels substantially below the emission standard in previous testing, and whether previous Method 0023 analyses detected low levels of dioxin/furan in the front half of the sampling train. §63.1208(b)(1)(i)(B)(2) I.A.5.a.1.b.3 Sources that emit carbonaceous particulate matter, such as coal-fired boilers, and sources equipped with activated carbon injection, will be deemed not suitable for use of Method 23 unless the source documents that there would not be a significant improvement in quality assurance with Method 0023A. §63.1208(b)(1)(i)(B)(3) I.A.5.a.1.c The source must sample for a minimum of three hours, and the source must collect a minimum sample volume of 2.5 dscm. §63.1208(b)(1)(ii) I.A.5.a.1.d The source may assume that nondetects are present at zero concentration. §63.1208(b)(1)(iii) 1.A.5.a.2 Metals. The source must use Method 29, provided in appendix A, part 60 of this chapter, to demonstrate compliance with emission standard for cadmium and lead (combined); and arsenic, beryllium, and chromium (combined); and mercury. §§63.1208(b)(2) - (4) 1.A.5.a.3 Hydrogen chloride and chlorine gas §63.1208(b)(5) 1.A.5.a.3.a Compliance with MACT standards.. To determine compliance with the emission standard for hydrogen chloride and chlorine gas (combined), the source must use: §63.1208(b)(5)(i) 1.A.5.a.3.a.1 Method 26/26A as provided in appendix A, part 60 of this chapter; or §63.1208(b)(5)(i)(A)