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

Standard No.

ISO 6999:1983

Release Date

1983

Published By

International Organization for Standardization (ISO)

Latest

ISO 6999:1983

Scope

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 鳦, after degassing under vacuum.

ISO 6999:1983 history

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