(a) Carvone content. Not less than 85 percent by weight.
(b) Refractive index at 20 [deg]C. 1.4930 to 1.4980.
(c) Specific gravity at 25 [deg]/25 [deg]C. 0.949 to 0.956.
(d) Odor. Characteristic odor. [T.D. ATF-133, 48 FR 24673, June 2, 1983. Redesignated by T.D. ATF-442, 66 FR 12854, Mar. 1, 2001]