27 CFR § 21.94-T - Alkylate.

---
identifier: "/us/cfr/t27/s21.94-T"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "27 CFR § 21.94-T - Alkylate."
title_number: 27
title_name: "Alcohol, Tobacco Products and Firearms"
section_number: "21.94-T"
section_name: "Alkylate."
chapter_name: "ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY"
subchapter_number: "A"
subchapter_name: "ALCOHOL"
part_number: "21"
part_name: "FORMULAS FOR DENATURED ALCOHOL AND RUM"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 552(a); 26 U.S.C. 5242, 7805."
regulatory_source: "T.D. ATF-133, 48 FR 24673, June 2, 1983, unless otherwise noted."
cfr_part: "21"
---


# 21.94-T Alkylate.

(a) *API gravity at 60 °F.* 70.4.

(b) *Reid vapor pressure (PSI).* 5.60 maximum.

(c) *Distillation ( °F):*

(i) *I.B.P.* 109.0.

(ii) *10 percent.* 186.6.

(iii) *50 percent.* 221.1.

(iv) *90 percent.* 271.8.

(v) *End point distillation.* 375.7.

[T.D. TTB-140, 81 FR 59461, Aug. 30, 2016]