ISO-306 › Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST)
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This document 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.
To find similar documents by classification:
83.080.20 (Thermoplastic materials)
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Document Number
ISO 306:2022
Revision Level
6TH EDITION
Status
Current
Publication Date
Nov. 1, 2022
Committee Number
ISO/TC 61/SC 2