ISO 306, ASTM D1525
Vicat Softening Point
Purpose: This test method measures the Vicat softening point of a solid polymer material at predetermined stress/load.
Sample: Test bars
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Basic Description: The bars are placed under the deflection machine a specified load and ramp rate. The samples are lowered into a silicone bath and tested until the end deflection is occurred. The temperature is recorded.
Limitations:
- Method A50 using a force of 10 N and a heating rate of 50 °C/h
- Method B50 using a force of 50 N and a heating rate of 50 °C/h
- Method A120 using a force of 10 N and a heating rate of 120 °C/h
- Method B120 using a force of 50 N and a heating rate of 120 °C/h
Method Publisher: https://www.iso.org/standard/33317.html
Keywords:
- Deflection temperature under load
- Heat deflection temperature
- Vicat softening point
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