Abstract

The ASTM procedure of petroleum engineers is a standardized version of this laboratory operation. The equipment necessary for this procedure includes only a balloon with a thermometer, heated electrically. As a function of the fraction vaporized, we raise the temperature of the liquid in the balloon, and therefore in the vat. This way of working, without a column above the vat, is similar to the distillation in an alembic or the retorts used by alchemists.

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