Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Bale-and-Ring Test

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_1016

n (ring-and-ball test) A method of determining the softening temperature of resins (see www.astm.org). A specimen is cast or molded in a metal ring of 16-mm inside diameter and 6.4-mm depth. This ring is placed upon a metal plate in a liquid bath heating at a controlled range, and a steel ball 9.5 mm in diameter weighting 3.5 g is placed in the center of the specimen. The softening point is considered to be the temperature of the liquid when the ball penetrates the specimen and touches the lower plate.

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA