-196 Degree temperature impact test instrument is based GB229-2007 ( metal Charpy notched impact test method ) required for cryogenic devices and the latest research and development of refrigeration equipment. The product uses liquid nitrogen refrigeration technology, the use of heat balance principle, achieve the test kind of automatic uniform cooling thermostat; . can fully meet the national standard GB229-2007 prescribed temperature indicators of the product is simple and convenient operation, high efficiency, low temperature impact test metal ideal specimen cooling, insulation devices. It can be used for other low temperature testing and experimental work .