Commercial Freezers To -40Â° C. Low Temperature Upright, Vertical Freezers. Storage of your epoxy adhesive in a freezer at minus 40 degrees Celsius can considerably extend the shelf life of the epoxy adhesive. When storage is required; storage at this temperature will increase the shelf life of your epoxy to around 6 months. Our commercial freezer chest models are designed for safe, easy access to their interior storage chambers. They have a counterbalanced cabinet lid protect your valuable content.
Distaff, Device used in hand spinning in which individual fibres are drawn out of a mass of prepared fibres held on a stick (the distaff), twisted together to form a continuous strand, and wound on a second stick (the spindle). It is most often used for making linen; wool does not require a distaff (see carding).
Tuff: An igneous rock that contains the debris from an explosive volcanic eruption. It often contains fragments of bedrock, tephra and volcanic ash. The specimen shown here is about two inches (five centimeters) across.