Menu

0

ISO 306:2022

Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)

Publication date:   Nov 18, 2022

General information

90.92   Standard to be revised   Nov 19, 2025

ISO

ISO/TC 61/SC 2 Mechanical behavior

International Standard

83.080.20   Thermoplastic materials

Buying

  Published

PDF - €121.00

  English   French  



Buy

Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 306:2013

NOW

PUBLISHED
ISO 306:2022
90.92 Standard to be revised
Nov 19, 2025

REVISED BY

IN_DEVELOPMENT
ISO/CD 306