Vicat softening point - Wikipedia Vicat softening temperature or Vicat hardness is the determination of the softening point for materials that have no definite melting point, such as plastics It is taken as the temperature at which the specimen is penetrated to a depth of 1 mm by a flat-ended needle with a 1 mm2 circular or square cross-section
What Is Vicat Softening Temperature and How Is It Determined? The Vicat softening temperature (VST) is the point where a thermoplastic material softens under specific heat and load It is defined as the temperature at which a standard 1 mm² flat-ended indenter penetrates a plastic specimen by 1 millimeter
Heat Deflection Temperature and Vicat Test - Industrial Physics HDT testing measures the temperature where deformation occurs under a specified load, while the Vicat apparatus test measures the softening temperature of the sample without the application of a steady load and instead uses an indenter
Vicat Softening Temperature ASTM D1525, ISO 306 - Intertek The Vicat softening temperature is the temperature at which a flat-ended needle penetrates the specimen to the depth of 1 mm under a specific load The temperature reflects the point of softening to be expected when a material is used in an elevated temperature application
Vicat Softening Temperature (VST) Testing of Materials The Vicat Softening Temperature (VST) Technique – also known as the Vicat softening point technique – is used to determine the temperature at which a plastic material begins to soften under a specified load
BS EN ISO 306 – Vicat softening temperature - testinglab. net The Vicat softening temperature test involves loading a sample under specified pressure using a Vicat needle The test is performed on a heated stage, with the temperature gradually increased until the material reaches its Vicat softening point