 Ring and Ball Apparatus

The Ring and Ball apparatus is a device used to determine the softening point or the softening temperature of thermoplastic materials, such as resins, bitumens, and waxes. This is important for assessing the performance characteristics of these materials under heat. ### Components of the Apparatus: 1. **Ring**: A small metal ring, typically made of brass or another conductive metal, which holds the sample of the thermoplastic material.