Norm

ISO 5940:1981 en

Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of softening point by the ring-and-ball method

31,57

Over deze norm

Status Definitief
Aantal pagina's 5
Gepubliceerd op 01-05-1981
Taal Engels
Specifies a method using a disc-shped test piece to be prepared by moulding a test portion ina ring which is fitted into a heated bath. A steel ball is placed on the upper surface of the test piece. Then the temperature (softening temperature) is determined at which the test piece, on heating at a prescribed rate, softens sufficiently to sag to a specifeid depth under the mass of the ball. Details on the thermometers to be used and information on the melting of pitch samples are included in two annexes.

Details

ICS-code 71.100.10
Nederlandse titel Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of softening point by the ring-and-ball method
Engelse titel Carbonaceous materials for the production of aluminium - Pitch for electrodes - Determination of softening point by the ring-and-ball method

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