Description
Test tube 17 x 220 mm 25:0,5 ml is a graduated laboratory test tube manufactured from DURAN tubing. It features a round bottom, an NS 14/23 ground joint and is supplied complete with a matching NS-PE stopper. The tube has outer dimensions of 17 mm diameter by 220 mm height and carries a clear graduation scale to 25 ml in 0,5 ml increments for accurate volume reading. This glassware item from manufacturer Witeg is designed for routine sample handling, mixing, heating and short-term storage of liquids and reagents in chemical, analytical and life-science laboratories. The DURAN borosilicate construction provides good chemical resistance and thermal stability under standard laboratory conditions, while the polyethylene stopper ensures a secure closure that helps limit evaporation and contamination. Lightweight at a net weight of 0,03 kg yet robust enough for daily use, the tube is compatible with other NS 14/23 accessories and supports both qualitative and quantitative work where clear visibility and reliable performance are required.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 1 pc
- Dimensions: Ø 17 x 220 mm
- Graduation: 25:0,5 ml
- Joint size: NS 14/23
- Bottom shape: Round bottom
- Stopper: NS-PE stopper
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Questions about Test tubes, made from DURAN tubing, wi
What is this article?
Test tubes, made from DURAN tubing, wi 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.