This is a demonstration video of the Koehler K95100 Automatic Softening Point Apparatus.
This test method determines the softening point of bitumen in the range from 30 to 157°C (86 to 315°F) using the ring and ball apparatus immersed in distilled water (30 to 80°C), USP glycerin (above 80 to 157°C), or ethylene glycol (30 to 110°C).
The sample is cast in shouldered rings and heated at a controlled rate under the weight of a steel ball. The softening point is the temperature at which the bitumen disks soften and sag downward at a specified distance.
Conforms to the following specifications:
- ASTM D36
- ASTM E28
- IP 58
- IP 198
- AASHTO T53
- NF T 66-008
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