CFR › Title 27 › Part 21 › §21.11227 CFR §21.112Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Distillation range. No distillate should come over below 200 °F. and none above 211 °F.(b)Odor. Characteristic odor.