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T.D. ATF-133, 48 FR 24673, June 2, 1983, unless otherwise noted.
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Nomenclature changes to part 21 appear by T.D. ATF-435, 66 FR 5475, Jan. 19, 2001.
Nomenclature changes to part 21 appear by 81 T.D. TTB-140, 81 FR Aug. 30, 2016.
(a) Specific Gravity at 15.56°/15.56 °C. 0.80 to 0.90.
(b) Boiling point ( °C). 110.6.
(c) Distillation range ( °C). Not more than 1 percent by volume should distill below 109, and not less than 99 percent by volume below 112.
(d) Odor. Characteristic odor.
[T.D. TTB-140, 81 FR 59463, Aug. 30, 2016]