Regulations last checked for updates: May 05, 2025

Title 27 - Alcohol, Tobacco Products and Firearms last revised: Mar 20, 2025
§ 21.93 - Acetaldehyde.

(a) Aldehyde content (as acetaldehyde). Not less than 95.0 percent by weight.

(b) Color. Colorless.

(c) Odor. Characteristic pungent, fruity odor.

(d) Specific gravity at 15.56 °/15.56 °C. Not less than 0.7800.

source: T.D. ATF-133, 48 FR 24673, June 2, 1983, unless otherwise noted.
cite as: 27 CFR 21.93