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>ISO Standards>ISO 5940:1981-Carbonaceous materials for the production of aluminium-Pitch for electrodes-Determination of softening point by the ring-and-ball method
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immediate downloadReleased: 1981
ISO 5940:1981-Carbonaceous materials for the production of aluminium-Pitch for electrodes-Determination of softening point by the ring-and-ball method

ISO 5940:1981

Carbonaceous materials for the production of aluminium

CURRENCY
42 EUR
Standard´s number:ISO 5940:1981
Pages:5
Edition:1
Released:1981
Language:English
DESCRIPTION

ISO 5940:1981


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.
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