Reference number
ISO 306:1994
© ISO 2024
ISO 306:1994
Plastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)
Edition 3
1994-07
Withdrawn
Withdrawn (Edition 3, 1994)

Abstract

Specifies four methods for the determination: 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 principle is determining the temperature at which a standard indenter penetrates 1 mm into the surface. The methods 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     : Withdrawn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
     : 1994-07
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 3
    Number of pages
     : 5
  • Technical Committee :
    ISO/TC 61/SC 2
    ICS :
    83.080.20 
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