Also known as: EP
The end point for a distillation fraction is the temperature at which 100% of the fraction has evaporated when distilled.
However, in reality, the true end point of a fraction is typically higher than the true initial boiling point of the next highest fraction (i.e., they overlap) because they are complex mixtures of different hydrocarbons. Consequently, refiners in practice split the difference and define an "effective" end point that is in between and therefore lower than the true end point.
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