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ISO 6791:1981

Current Date published:

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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Related Information

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  • BS 4140-0:1986

    Methods of test for aluminium oxide, General introduction

  • BS 4140-1:1986

    Methods of test for aluminium oxide, Preparation and storage of test samples

  • BS 4140-10:1986

    Methods of test for aluminium oxide, Determination of untamped density

  • BS 4140-13:1986

    Methods of test for aluminium oxide, Preparation of sample solution by treatment with hydrochloric acid under pressure

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ISO 6791:1981

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