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ISO 306:2013 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 K/h;
method B50 using a force of 50 N and a heating rate of 50 K/h;
method A120 using a force of 10 N and a heating rate of 120 K/h;
method B120 using a force of 50 N and a heating rate of 120 K/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.
| Author | ISO/TC 61/SC 2 Mechanical behavior |
|---|---|
| Editor | ISO |
| Document type | Standard |
| Format | Paper |
| Edition | 5 |
| ICS | 83.080.20 : Thermoplastic materials
|
| Number of pages | 16 |
| Replace | ISO 306:2004 |
| Weight(kg.) | 0.1272 |
| Year | 2013 |
| Country | Switzerland |