Scoville scale Scoville Heat Units can be made by multiplying ppm H by a factor of 15" (modified to a factor of 16 by others). Another source using subjective assessment stated: "Conventional methods used in determining the level of pungency or capsaicin concentration are using a panel of tasters (Scoville Organoleptic test method). ... Pepper pungency is measured in Scoville Heat Units (SHU). This measurement is the highest dilution of a chile pepper extract at which heat can be detected by a taste panel (Bosland et al., 2007)." Since Scoville ratings are defined per unit of dry mass, comparison of ratings between
Robust measures of scale used. Another familiar robust measure of scale is the "median absolute deviation" (MAD), the median of the absolute values of the differences between the data values and the overall median of the data set; for a Gaussian distribution, MAD is related to formula_1 as formula_2 (the derivation can be found here). Robust measures of scale can be used as estimators of properties of the population, either for parameter estimation or as estimators of their own expected value. For example, robust estimators of scale are used to estimate the population variance or population standard deviation, generally by multiplying by a scale