{"data":{"id":"us/27-cfr-21.161","jurisdiction":"us","citation":"27 CFR 21.161","heading":"Weights and specific gravities of specially denatured alcohol.","body":"The weight of one gallon of each formula of specially denatured alcohol at 15.56 °C. (60 °F.) is as listed in this section. The specific gravity of each formula of specially denatured alcohol at 15.56 °C./15.56 °C. (60 °F./60 °F.) in air is as listed in this section. (Weight of 1 gallon of water at 15.56 °C. (60 °F.) is 8.32823 pounds in air.)\nWeights and Specific Gravities of Specially Denatured Alcohol 1\n[Slight deviations from this table may occur due to variations in specific gravities of authorized denaturants. Values for 190 proof determined experimentally in air. Other values calculated from these gravities.]\nS.D.A. Formula No. Finished formula (gals) 190 proof 192 proof 200 proof\nWt./gal. in air (lbs) Sp. gr. in air Wt./gal. in air (lbs) Sp. gr. in air Wt./gal. in air (lbs) Sp. gr. in air\n1 104.0 6.788 0.8151 6.756 0.8112 6.611 0.7938\n2-B 100.5 6.795 .8159 6.762 .8119 6.612 .7939\n3-A 105.0 6.787 .8149 6.755 .8111 6.611 .7938\n3-C 105.0 6.784 .8146 6.752 .8107 6.608 .7935\n4 100.8 6.823 .8193 6.791 .8154 6.640 .7973\n13-A 109.7 6.740 .8093 6.710 .8057 6.572 .7891\n18 195.4 7.802 .9368 7.785 .9348 7.708 .9255\n19 197.9 6.468 .7766 6.452 .7747 6.375 .7655\n23-A 107.9 6.788 .8151 6.758 .8115 6.619 .7948\n23-H 109.45 6.785 .8147 6.755 .8111 6.617 .7945\n25 100.9 7.080 .8501 7.047 .8462 6.897 .8282\n25 2 100.9 7.083 .8505 7.050 .8465 6.900 .8285\n25-A 102.5 7.119 .8548 7.087 .8510 6.939 .8332\n25-A 2 102.5 7.117 .8546 7.085 .8507 6.938 .8331\n28-A 101.0 6.786 .8148 6.753 .8109 6.603 .7929\n29 100.76 6.808 .8175 6.775 .8135 6.624 .7954\n30 110.0 6.785 .8147 6.755 .8111 6.617 .7945\n31-A 111.5 7.167 .8606 7.138 .8571 7.002 .8408\n32 104.8 6.769 .8128 6.737 .8089 6.593 .7916\n35-A 3 105.0 6.817 .8185 6.785 .8147 6.641 .7974\n35-A 4 104.25 6.826 .8196 6.794 .8158 6.649 .7984\n36 102.7 6.837 .8209 6.804 .8170 6.657 .7993\n37 100.9 6.794 .8158 6.762 .8119 6.612 .7939\n38-B 101.3 6.804 .8170 6.772 .8131 6.622 .7951\n38-D 102.7 6.863 .8241 6.830 .8201 6.682 .8023\n38-F 100.9 6.828 .8199 6.796 .8160 6.646 .7980\n39-B 102.7 6.857 .8233 6.825 .8195 6.677 .8017\n39-C 101.0 6.819 .8188 6.792 .8155 6.642 .7975\n39-D 101.3 6.819 .8188 6.787 .8149 6.637 .7969\n40 100.1 6.795 .8159 6.762 .8119 6.611 .7938\n40-A 100.2 6.798 .8163 6.765 .8123 6.613 .7941\n40-B 100.1 6.794 .8158 6.761 .8118 6.610 .7937\n40-C 103.0 6.788 .8151 6.756 .8112 6.609 .7936\n44 110.0 6.790 .8153 6.760 .8117 6.622 .7951\n45 129.8 7.545 .9060 7.520 .9030 7.403 .8889\n1 Where alternate denaturants are permitted, the above weights are based on the first denaturant or combination listed in the formula.\n2 With sodium iodide.\n3 Calculated on the basis of 85 percent ethyl acetate.\n4 Calculated on the basis of 100 percent ethyl acetate.","path":["Title 27—Alcohol, Tobacco Products and Firearms","CHAPTER I—ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY","SUBCHAPTER A—ALCOHOL","PART 21—FORMULAS FOR DENATURED ALCOHOL AND RUM","Subpart H—Weights and Specific Gravities of Specially Denatured Alcohol"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-27.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:11Z","sha256":"a19e908e8d76beaff92f49f98a6196e23a8f6d052a0bd0cd1d826e827555d5a1","source_id":"us-cfr","stale":true,"prev":"us/27-cfr-21.151","next":"us/27-cfr-22.1"},"notice":"GroundRules: Original legal text. Not legal advice."}