Load deflection temperature
The oil temperature is raised at a constant rate (120°C/h), and a specified bending stress is applied to the sample, with the temperature at which the specified deflection is reached being defined as the load deflection temperature.
JIS K7191, ISO 75, ASTM D648 The oil temperature is raised at a constant rate (120℃/h), and a specified bending stress is applied to the sample. The temperature at which the specified deflection is reached is referred to as the load deflection temperature. It is used as one of the indicators of the heat resistance of plastics.
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