# Ring and Ball Apparatus

> a test used to determine the softening point of materials that have no definite melting point

**Wikidata**: [Q96402012](https://www.wikidata.org/wiki/Q96402012)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ring_and_Ball_Apparatus)  
**Source**: https://4ort.xyz/entity/ring-and-ball-apparatus