Wikipedia über ULT-Freezer:
An
ultra low temperature (ULT) freezer is a refrigerator that stores contents at -80 to -86 °C (-112 to -123 °F). An ultra low temperature freezer is commonly referred to as a "minus 80 freezer" or a "negative 80 freezer", referring to the most common temperature standard. ULT freezers come in upright and chest freezer formats.
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