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Home Κατάστημα Educational Kits Educational Micro-Scale Kits Consumables (Microscale) Test Tube
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Test Tube

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SKU: N/A Categories: Consumables (Microscale), Glassware, Glassware Tags: Chemistry, Test Tubes
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Description

Test Tube

Test Tube with Rim

Available in 3 types:

  • 12mm dia x 100 mm height (11,3cm³)
  • 15mm dia x 150 mm height (26,5cm³)
  • 21mm dia x 150 mm height (52cm³)

Price per test tube

A  test 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.

USES

 Chemistry

Test tubes intended for general chemical work are usually made of glass, for its relative resistance to heat. Tubes made from expansion-resistant glasses, mostly borosilicate glass.

Chemistry tubes are available in a multitude of lengths and widths, typically from 10 to 20 mm wide and 50 to 200 mm long. The top often features a flared lip to aid pouring out the contents.

A chemistry test tube typically has a flat bottom, a round bottom, or a conical bottom. Some test tubes are made to accept a ground glass stopper or a screw cap. They are often provided with a small ground glass or white glaze area near the top for labelling with a pencil.

Test tubes are widely used by chemists to handle chemicals, especially for qualitative experiments and assays. Their spherical bottom and vertical sides reduce mass loss when pouring, make them easier to wash out, and allow convenient monitoring of the contents. The long, narrow neck of test tube slows down the spreading of gases to the environment.

 Biosciences

Culture tubes are test tubes used in biology and related sciences for handling and culturing all kinds of live organisms, such as molds, bacteria, seedlings, plant cuttings, etc.. 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.

Test tubes are made of borosilicate glass.

Additional information
Dimensions

12 mm x 100 mm, 15 mm x 150 mm, 21 mm x 150 mm

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