British Standard Methods of sampling and test for Carbonaceous materials used in aluminium manufacter Part 1. Electrode pitch Section 1.2 Determination of water content (Dean and Stark method)
This International Standard specifies an azeotropic distillation method for the determination of the water content of pitch used in the production of aluminium.
The method is applicable to pitches having water contents in the range 0,1 to 2％ (m/m).