CFR / 
Title 27
 / 
Part 21
 / 
Sec. 21.103 Chloroform.
(a) Odor. Characteristic odor.
(b) Specific gravity at 25 [deg]/25 [deg]C. Not less than 1.400.
[T.D. ATF-133, 48 FR 24673, June 2, 1983. Redesignated by T.D. ATF-442, 66 FR 12854, Mar. 1, 2001]