ISO 6999:1983, Carbonaceous materials for the production of aluminium -- Pitch for electrodes -- Determination of density -- Pycnometric method

The density of pitch used for preparation of electrodes for the production of aluminium is a property which gives a guide to its consistency of quality. Knowledge of this parameter is essential for optimum use of pitch. The determination is carried out by measuring the density in a pyknometer at 25 �C, after degassing under vacuum. This title may contain less than 24 pages of technical content.