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Federal regulations · Through 2026-08-25 · Newer source version available

27 CFR 21.112-T3: -T3 High octane denaturant blend.

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Where this section sits in the code
  1. Title 27—Alcohol, Tobacco Products and Firearms
  2. CHAPTER I—ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY
  3. SUBCHAPTER A—ALCOHOL
  4. PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM
  5. Subpart E—Specifications for Denaturants

(a) API Gravity at 60 °F. 40 to 65.

(b) Reid Vapor Pressure (PSI). 6 to 15.

(c) Isopropyl alcohol. 24 to 40 percent volume.

(d) Methyl alcohol. 1.6 to 9.6 percent volume.

(e) Diisopropyl ether (DIPE). 4 to 12 percent volume.

(f) tert-Butyl alcohol. 4 to 12 percent volume.

(g) Iso-pentane. 4 to 9 percent volume.

(h) Pentane. 4 to 9 percent volume.

(i) Pentene. 0 to 2.4 percent volume.

(j) Hexane. 2 to 6 percent volume.

(k) Heptane. 1 to 3 percent volume.

(l) Sulfur (ppm). 0 to 120.

(m) Benzene (% vol.). 0 to 1.1.

(n) Distillation ( °F):

(i) 10 percent. 80 to 168.

(ii) 50 percent. 250.

(iii) End point distillation. 437.

Collected 2026-08-27T02:25:11Z. Source file · JSON

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