U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 27Chapter IPart 21Subpart E - Subpart E—Specifications for Denaturants
View all text of Subpart E [§ 21.91 - § 21.133]
§ 21.112 - Heptane.

(a) Distillation range. No distillate should come over below 200 °F. and none above 211 °F.

(b) Odor. Characteristic odor.

[T.D. ATF-133, 48 FR 24673, June 2, 1983. Redesignated by T.D. ATF-442, 66 FR 12854, Mar. 1, 2001]
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