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The racks are most commonly made of metal wires, but they can also be found as plastic, polystyrene, foam, fiberglass, and polypropylene. Test tube racks come in the form of a classic rack, an interlocking cube form, a stack-able form, test tube drying rack, slant rack, and 1-well rack. [2] Classic Test Tube Rack
It is used for holding a test tube in place [2] when the tube is hot or should not be touched. [3] For example, a test tube holder can be used to hold a test tube while it is being heated. [4] Moreover, when heating the tube with liquid or solid contained inside, the holder ought to tightly hold a test tube [5] in order for the tube to be ...
Stainless steel laboratory drying rack, which is also known as a 'Mod-Rack' pegboard, is the drying rack made of stainless steel that uses to drain laboratory accessories. The examples of stainless steel laboratory drying rack are flask holders, soap dispensers, paper towel dispensers, glove box holders, drain shelves. [1]
Wire gauze or wire mesh is a gauze woven of metal wire, or very fine, gauze-like wire netting. Wire gauze is placed on the support ring that is attached to the retort stand between a burner and glassware , or is placed on a tripod to support beakers , flasks , or other glassware to protect it during heating.
The tube is usually held by its neck with a clamp or tongs. By tilting the tube, the bottom can be heated to hundreds of degrees in the flame, while the neck remains relatively cool, possibly allowing vapours to condense on its walls. A boiling tube is a large test tube intended specifically for boiling liquids.
Tripods are usually made of stainless steel or aluminium and made light-weight for efficient portability within the lab. Often a wire gauze is placed on top of the tripod to provide a flat base for glassware. Tripods are generally tall enough for a bunsen burner to be placed underneath. [1]
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