Reference number
ISO 306:2022
© ISO 2024
International Standard
ISO 306:2022
Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)
Edition 6
2022-11
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Published (Edition 6, 2022)

ISO 306:2022

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Format
CHF 96
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Abstract

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.

General information

  • Status
     : Published
    Publication date
     : 2022-11
    Stage
    : International Standard published [60.60]
  • Edition
     : 6
    Number of pages
     : 16
  • Technical Committee :
    ISO/TC 61/SC 2
    ICS :
    83.080.20 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

9
Industry, Innovation and Infrastructure

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