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SAA AS 1368

December 19, 2000

Complete Document

PLASTICS - THERMOPLASTIC MATERIALS - DETERMINATION OF VICAT SOFTENING TEMPERATURE (VST)



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SAME AS ISO 306
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Description / Abstract:

This International Standard specifies four methods for the determination of the Vicat softening temperature (VST) of thermoplastic materials:

- 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

The methods specified are applicable only to thermoplastics, for which they give a measure of the temperature at which the thermoplastics start to soften rapidly.