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Technical Committee No TC01
Status Active
Category Chemical And Textile Sector
Sub Category

This International Standard 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.

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