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ISO 306:2004Withdrawn

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

Plastiques — Matières thermoplastiques — Détermination de la température de ramollissement Vicat (VST)

Abstract / scope

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.

Life cycle

Replaces

ISO 306:1994WithdrawnPlastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)International Standard · Published 21 Jul 1994 · ISO/TC 61/SC 2

Replaced by

ISO 306:2013WithdrawnPlastics — Thermoplastic materials — Determination of Vicat softening temperature (VST)International Standard · Published 8 Nov 2013 · ISO/TC 61/SC 2