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ISO 5939:1980

Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of water content — Azeotropic distillation (Dean and Stark) method

Publication date:   Jul 1, 1980

General information

90.93   Standard confirmed   Oct 27, 2025

ISO

ISO/TC 226 Materials for the production of primary aluminium

International Standard

71.100.10   Materials for aluminium production

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Scope

Describes a method comprising the heating of the pitch under reflux with xylene, collection in a receiver of the condensate of xylene and water and measurement of the volume of water which separates out in the graduated part of the receiver. Applies to pitches having water contents in the range between 0,1 and 2 % (m/m).

Life cycle

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PUBLISHED
ISO 5939:1980
90.93 Standard confirmed
Oct 27, 2025