Degrees Lovibond

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Degrees Lovibond or °L scale is a measure of the color of a substance, usually beer, whiskey, or sugar solutions. The Standard Reference Method (SRM) and EBC method have largely replaced it, with the SRM giving results approxamately equal to the °L. The determination of the degrees lovibond takes place by comparing the color of the substance to a series of amber to brown glass slides, usually by a colorimeter.

°L = (EBC + 1.2) / 2.65
°L = (SRM + 0.6) / 1.35