40 C.F.R. Table 2B to Subpart E of Part 59
Reactivity Factors for Aliphatic Hydrocarbon Solvent Mixtures
Cite as 40 C.F.R. Table 2B to Subpart E of Part 59 (2026)
Bin Average boiling point * (degrees F) Criteria Reactivity factor (g O 3 /g VOC) 1 80-205 Alkanes (<2% Aromatics) 1.42 2 80-205 N- & Iso-Alkanes (≥90% and <2% Aromatics) 1.31 3 80-205 Cyclo-Alkanes (≥90% and <2% Aromatics) 1.63 4 80-205 Alkanes (2 to <8% Aromatics) 1.47 5 80-205 Alkanes (8 to 22% Aromatics) 1.56 6 >205-340 Alkanes (<2% Aromatics) 1.17 7 >205-340 N- & Iso-Alkanes (≥90% and <2% Aromatics) 1.03 8 >205-340 Cyclo-Alkanes (≥90% and <2% Aromatics) 1.44 9 >205-340 Alkanes (2 to <8% Aromatics) 1.44 10 >205-340 Alkanes (8 to 22% Aromatics) 1.98 11 >340-460 Alkanes (<2% Aromatics) 0.70 12 >340-460 N- & Iso-Alkanes (≥90% and <2% Aromatics 0.62 13 >340-460 Cyclo-Alkanes (≥90% and <2% Aromatics) 0.86 14 >340-460 Alkanes (2 to <8% Aromatics) 0.99 15 >340-460 Alkanes (8 to 22% Aromatics) 1.57 16 >460-580 Alkanes (<2% Aromatics) 0.52 17 >460-580 N- & Iso-Alkanes (≥90% and <2% Aromatics) 0.48 18 >460-580 Cyclo-Alkanes (≥90% and <2% Aromatics) 0.60 19 >460-580 Alkanes (2 to <8% Aromatics) 0.66 20 >460-580 Alkanes (8 to 22% Aromatics) 0.95 [77 FR 14286, Mar. 9, 2012, as amended at 90 FR 5710, Jan. 17, 2025]