Title 27, Part 30 — Gauging Manual

Gauging of distilled spirits.

Delegations of the Administrator.

Meaning of terms.

Requirements.

Hydrometers and thermometers.

Use of precision hydrometers and thermometers.

Specific gravity hydrometers.

Use of precision specific gravity hydrometers.

Determination of proof.

Determination of proof obscuration.

General requirements.

Bulk spirits.

Denatured spirits.

Packaged spirits.

Weighing containers.

Withdrawal gauge for packages.

Procedures for measurement of bulk spirits.

Procedure for measurement of cased spirits.

Table 1, showing the true percent of proof spirit for any indication of the hydrometer at temperatures between zero and 100 degrees Fahrenheit.

Table 2, showing wine gallons and proof gallons by weight.

Table 3, for determining the number of proof gallons from the weight and proof of spirituous liquor.

Table 4, showing the fractional part of a gallon per pound at each percent and each tenth percent of proof of spirituous liquor.

Table 5, showing the weight per wine gallon (at 60 degrees Fahrenheit) and proof gallon at each percent of proof of spirituous liquor.

Table 6, showing respective volumes of alcohol and water and the specific gravity in both air and vacuum of spirituous liquor.

Table 7, for correction of volume of spirituous liquors to 60 degrees Fahrenheit.

Optional method for determination of proof for spirits containing solids of 400 milligrams or less per 100 milliliters.

Recording obscuration by proprietors using the optional method for determination of proof.