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.
Status: WithdrawnPublication date: 1981-05
Edition: 1Number of pages: 5
Technical Committee: ISO/TC 226 Materials for the production of primary aluminium
- ICS :
- 71.100.10 Materials for aluminium production
ISO 5940:1981Stage: 95.99
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