The GenChamber relies on a compressor-based refrigeration system that works with ethyl alcohol as the cooling medium. A stirring mechanism circulates the liquid continuously, helping specimens reach uniform temperatures without localized cold spots.

This system enables cooling down to –80 °C, with stepwise gradients from ambient conditions. The combination of controlled refrigeration, ethanol circulation, and stirring stability makes the chamber suitable for preparing Charpy and Izod specimens in line with ISO and ASTM low-temperature testing requirements.

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