The Brittleness Temperature Tester evaluates specimens immersed in liquid at low temperature. Impact is applied by hammer at constant speed and evaluation is made from generation of cracks.
ISO 812 - Rubber, vulcanized or thermoplastic — Determination of low-temperature brittleness
ISO 974 - Plastics — Determination of the brittleness temperature by impact
ASTM D746 - Standard Test Method for Brittleness Temperature of Plastics and Elastomers by Impact