U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
(a) Purity. ≥95.0 percent.
(b) Color. Colorless to light yellow.
(c) Odor. Terpene-like.
(d) Specific gravity at 20 °C. 0.70 to 0.80.
(e) Boiling point ( °C). 73.
