Description
Test tubes 17 x 200 mm NS 14/23 are ungraduated laboratory vessels designed for sample containment, mixing and moderate heating applications. These round-bottom tubes come with NS-PE stoppers and are manufactured from DURAN tubing, providing solid chemical resistance and thermal performance for standard laboratory procedures. Measuring 17 mm in diameter and 200 mm in length, they incorporate an NS 14/23 ground joint for reliable connection to compatible glassware components. Available in packs of 10 pieces, the tubes support daily tasks in chemical analysis, life-science workflows and educational settings. Offered by manufacturer Witeg, they combine optical clarity with mechanical durability. The round-bottom geometry aids uniform heat transfer during heating steps, while the polyethylene stoppers ensure a tight seal that reduces evaporation and cross-contamination risks. Each tube has a net weight of 0,026 kg, making them convenient to handle when working with reagents, cultures or reaction mixtures that do not require graduated volume markings.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 10 pc(s)
- Dimensions: 17 x 200 mm
- Joint size: NS 14/23
- Stopper type: NS-PE stopper
- Bottom shape: Round bottom
- Graduation: Ungraduated
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Questions about Test tubes 17 x 200mm ST 14/23
What is this article?
Test tubes 17 x 200mm ST 14/23 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. Delivery across Europe, two to five days when in stock. 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.
