Kofler bar

In laboratories where preparative work is done, softening points are often determined with the Kofler bar, which consists of a metal plate with a temperature gradient along it. The sample is moved with a brush from the colder to the warmer points on the metal plate. At a given point, the sample will remain stuck to the plate the temperature associated with this point is taken as the softening point. Since this temperature depends on both the viscosity of the sample and its adhesion to the metal surface, the softening point thus determined is very approximate. It often bears no simple relationship to the glass transition or melt temperature. 

In laboratories where preparative work is done, softening points are often determined with the Kofler bar, which consists of a metal plate with a temperature gradient along it. The sample is moved with a brush... 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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