ISO/DIS 6791
ISO/DIS 6791

ISO/DIS 6791

December 2025
International standard Project

Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of contents of quinoline-insoluble material

Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 °C for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filter pad, and are filtered. The washed and dried residue on the filter pad is weighed.

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Main informations

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International ISO standards

Publication date

December 2025

Number of pages

11 p.

Reference

ISO/DIS 6791

ICS Codes

71.100.10   Materials for aluminium production

Print number

1
Sumary
Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of contents of quinoline-insoluble material

Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 °C for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filter pad, and are filtered. The washed and dried residue on the filter pad is weighed.

Replaced standards (1)
ISO 6791:1981
November 1981
International standard Current
Carbonaceous materials for the production of aluminium. Pitch for electrodes. Determination of content of quinoline-insoluble material.

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