Vee Gee 6613-I Alcohol Hydrometer, 60-80% Proof Range, Internal Revenue Size I, 0.2% Subdivision, 305 mm Length

The Hydrometer is an instrument which is constructed on the Archimedes principle that a solid body displaces its own weight of the liquid in which it floats. Hydrometers can be divided into two general classes; namely for liquids heavier than water and for liquids lighter than water. The base hydrometer scale is Specific Gravity, in which distilled water equals 1.000 as the initial point. Liquids lighter than water are scaled below 1.000 specific gravity and liquids heavier than water are scaled above 1.000 specific gravity. Hydrometers are usually calibrated at 60°F/60°F. To determine the density of a liquid, the liquid should be at 60°F. If the temperature varies, the liquid will either contract or expand, depending upon the temperature. Where there is a variation from the standard 60°F, corrections must be applied to the hydrometer reading. To assure proper corrections, a separate accurate thermometer should be used, or a hydrometer in combination with a thermometer, which is sometimes referred to as a "thermohydrometer." Internal Revenue Size I Alcohol Hydrometer. 60-80% Proof Range, 0.2% Subdivision, ±0.3% Tolerance, 305mm Length

• 60-80% Proof Range
• Internal Revenue Size I
• 0.2% Subdivision
• ±0.3% Tolerance
• 305mm Length