Description
Graduated test tubes 17 × 120 mm NS 14/23 are laboratory glassware manufactured from DURAN tubing. Each tube is supplied with an NS-PE stopper for the NS 14/23 ground joint and has a short pointed conical bottom measuring 18 ± 2 mm in height. Outer diameter is 17 mm and overall height is 120 mm, with a clear graduation scale of 10:0,1 ml for reliable volume reading. These test tubes from manufacturer Witeg are intended for sample handling, reagent preparation, reactions and general laboratory work in analytical, research and quality-control environments. The DURAN construction offers the chemical resistance and thermal behaviour expected of borosilicate laboratory glass. The pointed conical base aids sample recovery and mixing. Supplied as 1 pc with a net weight of 0,021 kg, the tubes suit routine chemistry, biology and teaching applications where graduated glassware with standard ground joints is required for consistent day-to-day laboratory procedures.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 1 pc
- Material: DURAN tubing
- Outer diameter: 17 mm
- Height: 120 mm
- Joint: NS 14/23 with NS-PE stopper
- Graduation: 10:0,1 ml
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Questions about Test tubes graduated 17 x 120 mm ST 14/23
What is this article?
Test tubes graduated 17 x 120 mm 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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Shelves beside this one are Centrifuge tubes (conical), Sample vials & NMR tubes and Tube & vial accessories.
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