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  2. Test tube rack - Wikipedia

    en.wikipedia.org/wiki/Test_tube_rack

    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.

  3. Test tube holder - Wikipedia

    en.wikipedia.org/wiki/Test_tube_holder

    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 safely held while heating.

  4. Retort stand - Wikipedia

    en.wikipedia.org/wiki/Retort_stand

    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. [4] The typical ring stand consists of a heavy base and a vertical rod, both ...

  5. Test tube - Wikipedia

    en.wikipedia.org/wiki/Test_tube

    A boiling tube is a large test tube intended specifically for boiling liquids. A test tube filled with water and upturned into a water-filled beaker is often used to capture gases, e.g. in electrolysis demonstrations. A test tube with a stopper is often used for temporary storage of chemical or biological samples.

  6. Instruments used in medical laboratories - Wikipedia

    en.wikipedia.org/wiki/Instruments_used_in...

    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 cannulation. Microscope: used for visualising minute structures, including microbes: Bunsen burner or spirit lamps or candles: source ...

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  8. Clamp holder - Wikipedia

    en.wikipedia.org/wiki/Clamp_holder

    A clamp holder or clamp fastener is a piece of laboratory apparatus that is used to secure laboratory clamps, such as extension-type utility clamps, or other attachments to a retort stand or lab frame. [1] The material can be made up of brass, cast iron, stainless steel, aluminium or nickel-plated zinc. [2]

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