INTRODUCTION
Ethanol (C2H5OH) content of water mixtures is based on specific gravity (also known as relative density) and is calculated using the Alcoholometric Table. The information in the table is based on a method and specifications that were developed from regulations from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). The table is based on the measurement of alcohol at 15.56° (60° F) as standard temperature for alcohol determination. When alcohol and water are mixed together, the volume of the mixture is invariably less than the sum of the initial volumes, and the degree of contraction varies with the proportion of alcohol present. Therefore, the specific gravities of alcohol and water mixtures in all proportions and at various temperatures have been established experimentally.