Description
Test tubes AR glass round bottom 180 x 20 mm are laboratory glassware intended for sample handling, qualitative tests, mixing and general chemical work. Produced from AR glass, each tube has a round bottom and a beaded rim and measures 180 mm in length by 20 mm in diameter. The beaded rim improves handling and stopper seating, while the round bottom supports even heat distribution during gentle warming. Supplied as a pack of 100 pieces from manufacturer Witeg, the tubes suit routine workflows in research, teaching and industrial laboratories. AR glass provides optical clarity together with suitable chemical resistance for aqueous media and many common reagents under standard laboratory conditions. The pack has a net weight of 2,174 kg, simplifying inventory control. Standardised dimensions ensure compatibility with conventional test-tube racks, holders and water baths. These tubes serve as a dependable everyday consumable for precipitation checks, temporary storage, simple reactions and sample preparation across chemistry, biology and quality-control environments.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 100 pc(s)
- Material: AR glass
- Dimensions: 180 x 20 mm
- Bottom: Round bottom
- Rim: Beaded rim
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Questions about Test tubes AR-glass
What is this article?
Test tubes AR-glass is the article on this page. Luminix Health distributes Witeg 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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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.