CFR /  Title 27  /  Part 21  /  Sec. 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 [deg]/15.56 [deg]C. Not less than 0.7800.