This document specifies the ring-and-ball method, a method of using the ring-and-ball apparatus for the determination of the softening point (softening temperature) of pitch used in the production of aluminium.
The method is applicable to pitches having softening points equal to or greater than 30 °C.
Status: PublishedPublication date: 2019-10
Edition: 1Number of pages: 10
Technical Committee: ISO/TC 226 Materials for the production of primary aluminium
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