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The Baumé scale is a pair of hydrometer scales developed by French pharmacist Antoine Baumé in 1768 to measure density of various liquids. The unit of the Baumé scale has been notated variously as degrees Baumé, B°, Bé° and simply Baumé (the accent is not always present). One scale measures the density of liquids heavier than water and ...
Schematic drawing of a hydrometer. The lower the density of the fluid, the deeper the weighted float B sinks. The depth is read off the scale A.. A hydrometer or lactometer is an instrument used for measuring density or relative density of liquids based on the concept of buoyancy.
The Oechsle scale is a hydrometer scale measuring the density of grape must, [1] which is an indication of grape ripeness and sugar content used in wine-making. It is named for Ferdinand Oechsle (1774–1852) and it is widely used in the German , Swiss and Luxembourgish wine-making industries.
He devised many improvements in technical processes, e.g. for bleaching silk, dyeing, gilding, purifying saltpetre, etc., but he is best known as the inventor of the Baumé scale hydrometer or "spindle" which provides scientific measurements for the density of liquids. The scale remains associated with his name but is often improperly spelt ...
The four scales are often used interchangeably since the differences are minor. Brix is primarily used in fruit juice, wine making, carbonated beverage industry, starch and the sugar industry. Plato is primarily used in brewing. Balling appears on older saccharimeters and is still used in the South African wine industry and in some breweries.
Here temperature is being specified using the current ITS-90 scale and the densities [5] used here and in the rest of this article are based on that scale. On the previous IPTS-68 scale the densities [ 6 ] at 20 °C and 4 °C are, respectively, 0.9982041 and 0.9999720 resulting in an RD (20 °C/4 °C) value for water of 0.99823205.
On this scale, a specific gravity of 1.000 is reported as 0, and a specific gravity of 2.000 is reported as 200. [1] For example, concentrated sulfuric acid with a specific gravity of 1.8 has a Twaddell scale measurement of 160, reflecting the linear relationship between readings and specific gravity. The Twaddell scale is used exclusively for ...
It is nice to find conversion formulas, but for quick reference the inclusion of a conversion table would be desirable. Examples of Baume values for typical trade qualities of different chemicals would also be useful. —Preceding unsigned comment added by 90.239.87.91 09:43, 16 July 2010 (UTC)