GSO ISO 12979:2013
ISO 12979:1999
Gulf Standard
Current Edition
·
Approved on
09 September 2013
Carbonaceous materials for use in the production of aluminium -- Pitch for electrodes -- Determination of C/H ratio in the quinoline-insoluble fraction
GSO ISO 12979:2013 Files
English
11 Pages
Current Edition
Reference Language
USD
80.56
GSO ISO 12979:2013 Scope
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.
NOTE The isolation procedure is not an alternative to ISO 69711), which is to be used in all cases where the amount of quinoline-insoluble matter present in a pitch is to be determined.
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