Abstract 

ISO 306:2004 specifies four methods for the determination of the Vicat softening temperature (VST) of thermoplastic materials:

  1. Method A50 using a force of 10 N and a heating rate of 50 °C/h
  2. Method B50 using a force of 50 N and a heating rate of 50 °C/h
  3. Method A120 using a force of 10 N and a heating rate of 120 °C/h
  4. 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  • Status :  Withdrawn
    Publication date : 2004-07
  • Edition : 4
    Number of pages : 10
  • :
    ISO/TC 61/SC 2
    Mechanical behavior
  • 83.080.20
    Thermoplastic materials

Life cycle

A standard is reviewed every 5 years



Revisions / Corrigenda

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