Abstract
The empirical value of the obscuration factor in determinations of alcoholic strength has been established as being 0.3. When applied to a series of 19 samples, the mean deviation of the calculated strength, with obscuration considered, from the true alcohol strengths determined after distillation is 0.02%V/V with a standard error of the mean of 0.05%V/V. It is recommended that the dry extract obscuration procedure be used in preference to the distillation procedure when the dry extract concentration does not exceed 10 g l–1.

This publication has 0 references indexed in Scilit: