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Test Tube Rack. Test tube racks are laboratory equipment used to hold upright multiple test tubes at the same time. They are most commonly used when various different solutions are needed to work with simultaneously, for safety reasons, for safe storage of test tubes, and to ease the transport of multiple tubes.
Syringes: Disposable gloves: prevention of transmission of diseases (as long as not cut or perforated) to or from the user Tourniquet: This is used to cause an artificial venous stasis by applying pressure through this rubber tube. This leads to engorgement of the veins, allowing them to be seen more easily. Used for intravenous injections and ...
Some racks for culture tubes are designed to hold the tubes in a nearly horizontal position, so as to maximize the surface of the culture medium inside. Culture tubes for biology are usually made of clear plastic (such as polystyrene or polypropylene ) by injection molding [ 2 ] and are often discarded after use.
Pipetting syringes are hand-held devices that combine the functions of volumetric (bulb) pipettes, graduated pipettes, and burettes. They are calibrated to ISO volumetric A grade standards. A glass or plastic pipette tube is used with a thumb-operated piston and PTFE seal which slides within the pipette in a positive displacement operation ...
A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes, it is actually a piston) that fits tightly within a cylindrical tube called a barrel. The plunger can be linearly pulled and pushed along the inside of the tube, allowing the syringe to take in and expel liquid or gas through a discharge orifice at the ...
The wheels make it easy to move the rack and heavy objects easily throughout the space while the crossed designs on the side keep items from falling off and also reinforces the shelves with added ...
Retort stand. In chemistry, a retort stand, also called a clamp stand, [1] a ring stand, [2] or a support stand, [3] is a piece of scientific equipment intended to support other pieces of equipment and glassware — for instance, burettes, test tubes and flasks.
These gases are isolated using a mercury piston to measure its volume at atmospheric pressure and subsequent transfer to a gas chromatograph using a gas-tight syringe. An apparatus, in very similar design and in principle providing a multiple gas extraction, using vacuum and Toepler pump has been in service in Sydney (Australia) for more than ...