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U.S. Code of Federal Regula...
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Title 27—Alcohol, Tobacco P...
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CHAPTER I—ALCOHOL AND TOBAC...
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PART 30—GAUGING MANUAL
PART 30—GAUGING MANUAL
§ 30.1 - Gauging of distilled spirits.
§ 30.11 - Meaning of terms.
§ 30.21 - Requirements.
§ 30.22 - Hydrometers and thermometers.
§ 30.23 - Use of precision hydrometers and thermometers.
§ 30.24 - Specific gravity hydrometers.
§ 30.25 - Use of precision specific gravity hydrometers.
§ 30.31 - Determination of proof.
§ 30.32 - Determination of proof obscuration.
§ 30.36 - General requirements.
§ 30.41 - Bulk spirits.
§ 30.42 - Denatured spirits.
§ 30.43 - Packaged spirits.
§ 30.44 - Weighing containers.
§ 30.45 - Withdrawal gauge for packages.
§ 30.51 - Procedures for measurement of bulk spirits.
§ 30.52 - Procedure for measurement of cased spirits.
§ 30.61 - Table 1, showing the true percent of proof spirit for any indication of the hydrometer at temperatures between zero and 100 degrees Fahrenheit.
§ 30.62 - Table 2, showing wine gallons and proof gallons by weight.
§ 30.63 - Table 3, for determining the number of proof gallons from the weight and proof of spirituous liquor.
§ 30.64 - Table 4, showing the fractional part of a gallon per pound at each percent and each tenth percent of proof of spirituous liquor.
§ 30.65 - Table 5, showing the weight per wine gallon (at 60 degrees Fahrenheit) and proof gallon at each percent of proof of spirituous liquor.
§ 30.66 - Table 6, showing respective volumes of alcohol and water and the specific gravity in both air and vacuum of spirituous liquor.
§ 30.67 - Table 7, for correction of volume of spirituous liquors to 60 degrees Fahrenheit.
§ 30.71 - Optional method for determination of proof for spirits containing solids of 400 milligrams or less per 100 milliliters.
§ 30.72 - Recording obscuration by proprietors using the optional method for determination of proof.