The REF102 refractometer is an instrument that measures the concentration of an
aqueous solution by measuring its refractive index in a scale from 0 to 20
percent Brix. All water-based solutions can make light bend. The bending of
light increases at a rate proportional to the increasing solution concentration.
The hand held refractometer is a precise optical instrument. Its characteristics
are small, light, take only a few drops of solution to use and is very user
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