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  2. Test tube - Wikipedia

    en.wikipedia.org/wiki/Test_tube

    A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom. Test tubes are usually placed in special-purpose racks .

  3. Vacutainer - Wikipedia

    en.wikipedia.org/wiki/Vacutainer

    Vacutainer. A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen prior to analytical testing.

  4. Microplate - Wikipedia

    en.wikipedia.org/wiki/Microplate

    Microtiter plates with 96, 384 and 1536 wells. A microplate, also known as a microtiter plate, microwell plate or multiwell, [1] is a flat plate with multiple "wells" used as small test tubes. The microplate has become a standard tool in analytical research and clinical diagnostic testing laboratories.

  5. Beaker (laboratory equipment) - Wikipedia

    en.wikipedia.org/wiki/Beaker_(laboratory_equipment)

    In laboratory equipment, a beaker (also becker or beker) is generally a cylindrical container with a flat bottom. [1] Most also have a small spout (or "beak") to aid pouring, as shown in the picture. Beakers are available in a wide range of sizes, from one milliliter up to several liters. A beaker is distinguished from a flask by having ...

  6. Standard penetration test - Wikipedia

    en.wikipedia.org/wiki/Standard_penetration_test

    The test uses a thick-walled sampling tube, with an outside diameter of 5.01 cm (2 in) and an inside diameter of 3.5 cm (1.375 in), and a length of at least 60 cm (24 in). The sampling tube is driven into the ground at the bottom of a borehole by blows from a hammer with a mass of 63.5 kg (140 lb) falling a distance of 75 cm (30 in).

  7. Venipuncture - Wikipedia

    en.wikipedia.org/wiki/Venipuncture

    There are also a variety of tube and bottle sizes and volumes for different test requirements. Additives and order of draw. The test tubes in which blood is collected may contain one or more of several additives.

  8. Test tube rack - Wikipedia

    en.wikipedia.org/wiki/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.

  9. McFarland standards - Wikipedia

    en.wikipedia.org/wiki/McFarland_standards

    A 0.5 McFarland standard is prepared by mixing 0.05 mL of 1.175% barium chloride dihydrate (BaCl 2 •2H 2 O), with 9.95 mL of 1% sulfuric acid (H 2 SO 4). [1] Now there are McFarland standards prepared from suspensions of latex particles, which lengthens the shelf life and stability of the suspensions.

  10. Laboratory centrifuge - Wikipedia

    en.wikipedia.org/wiki/Laboratory_centrifuge

    Laboratory centrifuge. A laboratory centrifuge is a piece of laboratory equipment, driven by a motor, which spins liquid samples at high speed. There are various types of centrifuges, depending on the size and the sample capacity. [1] Like all other centrifuges, laboratory centrifuges work by the sedimentation principle, where the centripetal ...

  11. Nessler cylinder - Wikipedia

    en.wikipedia.org/wiki/Nessler_cylinder

    Nessler cylinders (also named color comparison cylinders or color comparing cylinders) are laboratory tubes with a fixed volume, made of glass with optically plane bottom. On the walls, there are marks of the nominal stroke volume (usually 100 ml) and possibly one halfway mark (usually 50 ml). Nessler cylinders with a capacity of 100 cc and 50 cc.