ASTM D 1525 - 00 Standard Test Method for Vicat Softening Temperature of Plastics

American Society for Testing and Materials (ASTM). Current edition approved March 10, 2000. Published May 2000. 8 p. This test method covers determination of the temperature at which a specified needle penetration occurs when specimens are subjected to specified controlled test conditions.
This test method is not recommended for ethyl cellulose, nonrigid poly(vinyl chloride), poly(vinylidene chloride), or other materials having a wide Vicat softening range