ISO 12979:1999

Current Revision
Carbonaceous materials for use in the production of aluminium -- Pitch for electrodes -- Determination of C/H ratio in the quinoline-insoluble fraction

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ISO 12979:1999

Carbonaceous materials for use in the production of aluminium -- Pitch for electrodes -- Determination of C/H ratio in the quinoline-insoluble fraction

PUBLISH DATE 1999
ISO 12979:1999

This International Standard describes a method for the determination of the atomic *carbon/hydrogen ratio* of quinoline-insoluble material isolated from coal-tar pitches.

A procedure for the isolation of the quinoline-insoluble material in a form suitable for the analysis is described.

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