27 C.F.R. § 21.58 Formula No. 31–A.
Title 27 - Alcohol, Tobacco Products and Firearms
(a) Formula. To every 100 gallons of alcohol add:
One hundred pounds of glycerin (glycerol), U.S.P., and 20 pounds of hard soap, N.F. XI. (b) Authorized uses. (1) As a solvent:
113. Lotions and creams (hands, face, and body). 131. Tooth paste and tooth powder. 141. Shampoos. (2) Miscellaneous uses:
812. Product development and pilot plant uses (own use only).
Title 27: Alcohol, Tobacco and Firearms
PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM
Subpart D—Specially Denatured Spirits Formulas and Authorized Uses
§ 21.58 Formula No. 31–A.