§ 21.106-T - Distilled lime oil (Citrus auranti...
Specific gravity at 25 °C. 0.850 to 0.870.
Refractive index at 20 °C. 1.4740 to 1.4780.
Optical rotation at 20 °C. +30° to +50°.
Aldehyde content (as citral). 0.5 to 3.0 percent.
Terpene content (as limonene). 45 percent minimum.