U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
(a) API gravity at 60 °F. 70.4.
(b) Reid vapor pressure (PSI). 5.60 maximum.
(c) Distillation ( °F):
(i) I.B.P. 109.0.
(ii) 10 percent. 186.6.
(iii) 50 percent. 221.1.
(iv) 90 percent. 271.8.
(v) End point distillation. 375.7.
