27 CFR § 21.118-T2
Naphtha
April 24, 2020
(a) API Gravity at 60 °F. 30 to 85.
(b) Reid Vapor Pressure (PSI). 8 maximum.
(c) Specific Gravity at 20 °C. 0.70 to 0.80.
(d) Distillation ( °F):
(i) I.B.P. 85 maximum.
(ii) 10 percent. 130 maximum.
(iii) 50 percent. 250 maximum.
(iv) 90 percent. 340 maximum.
(e) End point distillation. 380 maximum.
(f) Copper corrosion. One (1).
(g) Sabolt color. 28 minimum.
[T.D. TTB-140, 81 FR 59462, Aug. 30, 2016]