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ISO 306 Test Standard Explained

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Vicat Softening Temperature - ISO 306

The temperature at which a 1mm2 flat-ended needle will penetrate 1mm into a material under a specified load and heating rate. The vicat softening temperature can be used to compare the heat-softening characteristics of different materials.

Four different methods may be used for testing.

Testing Methods
Method Load (N) Heating Rate (°C/hr)
A50 10 50
B50 50 50
A120 10 120
B120 50 120

ISO 10350 Note

ISO 10350 Vicat values are tested using the B50 method.

Similar Standards

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