<p>This document specifies four methods for the determination of the Vicat softening temperature (VST) of thermoplastic materials:</p>
<p>— Method A50 using a force of 10 N and a heating rate of 50 °C/h;</p>
<p>— Method B50 using a force of 50 N and a heating rate of 50 °C/h;</p>
<p>— Method A120 using a force of 10 N and a heating rate of 120 °C/h;</p>
<p>— Method B120 using a force of 50 N and a heating rate of 120 °C/h.</p>
<p>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.</p>
Registration number (WIID)
82176
Scope
<p>This document specifies four methods for the determination of the Vicat softening temperature (VST) of thermoplastic materials:</p>
<p>— Method A50 using a force of 10 N and a heating rate of 50 °C/h;</p>
<p>— Method B50 using a force of 50 N and a heating rate of 50 °C/h;</p>
<p>— Method A120 using a force of 10 N and a heating rate of 120 °C/h;</p>
<p>— Method B120 using a force of 50 N and a heating rate of 120 °C/h.</p>
<p>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.</p>
