Description
Durham tubes 50x6 mm are slender glass tubes used to detect gas formation in microbiological fermentation and culture assays. Each tube is 50 mm long with an outer diameter of 6 mm and a wall thickness of 0,7 mm, providing a nominal volume of 0,75 ml. Fabricated from soda-lime glass, they feature a round bottom and a straight rim and are supplied ungraduated for unobstructed viewing of trapped gas. Placed inverted inside larger culture tubes, they collect gas produced by microbial metabolism during classic Durham tests. The glassware from manufacturer Marienfeld offers reliable dimensional consistency for routine laboratory work. Packed as 1050 pieces (boxes of 350), the format suits teaching labs, research groups and quality-control environments that process many samples. Clear walls, defined geometry and a practical pack size make these tubes a dependable consumable for fermentation studies, gas-detection protocols and related microbiology applications.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 1050 pc(s)
- Material: soda-lime glass
- Length: 50 mm
- Outer diameter: 6 mm
- Wall thickness: 0,7 mm
- EAN: 4250317309709
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Questions about Durham tubes 50x6 mm,
What is this article?
Durham tubes 50x6 mm, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Test tubes, inside Tubes & vials, in Labware.
A test tube is the open cylindrical vessel for a small liquid, in borosilicate glass or in plastic. Rimmed and rimless mouths differ. The size is diameter by length. It is not graduated for a result, and a glass tube that will be centrifuged has a force limit.
A tube holds a small sample upright. A test tube is the open glass or plastic cylinder. A centrifuge tube is conical so a pellet forms at the tip, and it is rated for a centrifugal force the rotor will actually reach. A vial is a small closed bottle, often for a sample that will sit in an instrument. NMR tubes are a special case: the glass has to be uniform or the spectrum is the tube, not the sample. Laboratory ware is listed under ISO laboratory glassware.
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The category is Tubes & vials. The sub-category is Test tubes. The catalogue is Labware.
Shelves beside this one are Centrifuge tubes (conical), Sample vials & NMR tubes and Tube & vial accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.