Softening Point

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Automatic Ring and Ball Tester

The softening point falls in with the temperature at which the binder softens beyond a fixed limit (a deformation of 25mm under the weight of a steel ball). The apparatus to measure this property is the Ring and Ball apparatus, available both in manual and automatic configurations. It is able to control the temperature gradient of the test liquid (air or glycerol) and to detect the binder specimen deformation.