Ray-Ran, a sister company to TMI, is a manufacturer of a Low Temperature Brittleness Tester. This testing instrument been designed to study the effects low temperatures have on plastic or rubber-polymer materials when subject to impact loads and conforms to ASTM D746 testing requirements as well as ISO R974 International Test Standards. Many plastic materials which are flexible at normal ambient temperatures become brittle at low temperatures which severely affect the materials impact strength for fracture. By plotting the percentage failure rate of the test samples against the reduction in temperature, the brittleness temperature of the test samples can be measured.