[Code of Federal Regulations]
[Title 27, Volume 1]
[Revised as of April 1, 2002]
From the U.S. Government Printing Office via GPO Access
[CITE: 27CFR30.62]

[Page 723]
 
            TITLE 27--ALCOHOL, TOBACCO PRODUCTS AND FIREARMS
 
 CHAPTER I--BUREAU OF ALCOHOL, TOBACCO AND FIREARMS, DEPARTMENT OF THE 
                                TREASURY
 
PART 30--GAUGING MANUAL--Table of Contents
 
                      Subpart E--Prescribed Tables
 
Sec. 30.62  Table 2, showing wine gallons and proof gallons by weight.

    The wine and proof gallon content by weight and proof of packages of 
distilled spirits usually found in actual practice will be ascertained 
from this table. The left-hand column contains the weights. The true 
percent of proof is shown on the heading of each page in a range from 90 
degrees to 200 degrees. Under the true percent of proof and on the same 
horizontal line with the weight will be found the wine gallons (at 60 
degrees Fahrenheit) and the proof gallons respectively. Where either the 
weight or the proof of a quantity of spirits is beyond the limitations 
of this table, the number of proof gallons may be ascertained by 
reference to Table 3. This table may also be used to ascertain the wine 
gallons (at 60 degrees Fahrenheit) and proof gallons of spirituous 
liquor containing dissolved solids where the weight, apparent proof 
(hydrometer indication corrected to 60 degrees Fahrenheit), and 
obscuration factor have been determined.
    Example.

334 lbs. of distilled spirits.
Apparent proof--96.0 deg..
Obscuration--0.8 deg..
True Proof 96.0 deg.+0.8 deg.=96.8 deg..
334 lbs. at 96.0 deg. apparent proof=42.8 wine gallons.
42.8 wine gallons x 96.8 deg.=41.4 proof gallons.

    In addition this table may be used to obtain the wine gallons, at 
the prevailing temperature, of most liquids within the range of the 
table, from the weight of the liquid and the uncorrected reading of the 
hydrometer stem. An application of this would be in determining the 
capacity of a package.

    Example. It is desired to determine, or to check the rated capacity 
of a package having a net weight of 395 pounds when completely filled 
with spirits having an uncorrected hydrometer reading of 113.0 deg.. The 
full capacity of the package, 51.5 wine gallons, would be found by 
referring to the table at 395 pounds and 113 deg. proof (hydrometer 
reading).

(Sec. 201, Pub. L. 85-859, 72 Stat. 1358, as amended, 1362, as amended 
(26 U.S.C. 5204, 5211))