Specific Gravity ( oSG) is one of the base units of hydrometry, indicating the relative density to water.The true value for 22.0 oBrix 20 oC = 12.5 oBauméįor most conversions see the conversion chart.A even more simplified approximation, for an in the field conversion of Brix to Baumé is to half the Brix measurement (Brix/2) and add one (1) i.e.As a fairly accurate approximation, near or at harvest.In a pure sugar solutions, dissolved solids corresponds exactly to the sugar concentration, and hence his scales were widely adopted in the sugar industry. The Brix scale, along with improvements to the hydrometer, allowed total dissolved solids to be measured in percentages (g/100g) to an accuracy of 0.1 percent, within a range of 0-75 % w/w ( o0 - o75 Brix). Brix (pronounced "Bricks"), was created by an Austrian physicist and mathematician, as an improvement to the Balling scale.The Balling scale, named after a Czechoslovakian chemist, was devised to correlate to the number of grams of cane or beet sugar (sucrose) in 100 grams of water 15.6 oC.Other scales for hydrometry also exist and these include Balling, Brix, Oechlé, Specific Gravity and Twaddle.The latter is used in the wine industry in both Australia and Europe, including France, as the oBé of settled grape juice closely correlates to the potential alcohol, when the juice is fermented to dryness.Two scales evolved, both with zero for the density of pure water, however, with one of the scales for solutions less then the density of water, and the other for solutions greater then the density of water.Poor instructions by him led to a number of different scales being used.The oBé ( oBaumé) scale was devised to correlate to the percentage concentration ( % w/w) of a brine solution (salt in water).oBaumé ( oBé), named after the French pharmacist, Antoine Baumé, who amongst other creations, developed the "Aerometer Baumé" or a hydrometer, using the density unit oBaumé to make up a scale of measurements.
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