§ 21.121 - Peppermint oil, Terpeneless.

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Specific gravity at 25 °C. 0.890 to 0.910.

Refractive index at 20 °C. 1.455 to 1.465.

Esters as menthyl acetate. 5 percent minimum.

Menthol (free and esters). 5 percent minimum.