ISO 306 Test Standard Explained

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Vicat Softening Temperature - ISO 306

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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

ASTM D1525

Property information for specific grades of resin are available in the Prospector.
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