Why does an alcohol hydrometer show the volume percentage of alcohol?
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Why does an alcohol hydrometer show the volume percentage of alcohol?
A hydrometer measures the specific gravity of a substance, and then, using a reference table, the corresponding concentration value for that specific gravity is determined, thereby yielding the concentration. To determine whether it is volume concentration or mass concentration, one needs to refer to the values in the reference table; please check your reference table. Additionally, the **standard requirement for ethanol is the volume percentage, so it is convenient to convert it to a volume percentage.
What an alcohol meter measures is the fractional volume.
Why does an alcohol hydrometer show the volume percentage of alcohol? Personally, I think that the measurement by an alcohol meter is based on the principle of buoyancy, with the measurement being determined by the depth to which the alcohol meter is submerged
Because the scales on it are calibrated based on volume fraction; if customizing it, it’s also possible to calibrate it based on mass fraction; P
{:3_49:} Why be so worried about using just the external standard method?
That’s right; the alcoholometers available on the market all indicate the volume percentage. If a measurement of quality is required, it can be ordered from the manufacturer. The volume percentage is also written down. Because an alcohol meter measures based on the specific gravity of alcohol.