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ASTM D1525 Test for Vicat Softening Temperature of Plastics
Date：2017-03-25 Source：United Test Views：100
ASTM D1525
Standard Test Method for Vicat Softening Temperature of Plastics
This test method covers determination of the temperature at which a specified needle penetration occurs when specimens are subjected to specified controlled test conditions. It's equivalent to standard ISO306.
Test Procedure:
A test specimen is placed in the testing apparatus so that the penetrating needle rests on its surface at least 1 mm from the edge. A load of 10N or 50N is applied to the specimen. The specimen is then lowered into an oil bath at 23 degrees C. The bath is raised at a rate of 50° or 120° C per hour until the needle penetrates 1 mm.
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HVT series HDT/VICAT tester |
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