27 CFR §21.124-T
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
(a) API Gravity at 60 °F. 30 to 85.
(b) Reid Vapor Pressure (PSI). 5 to 11.
(c) Octane (R+M/2). 66 to 70.
(d) Distillation ( °F):
(i) 10 percent. 120 to 150.
(ii) 50 percent. 144 to 180.
(iii) 90 percent. 168 to 200.
(iv) End point distillation. 216 to 285.