Description
Test tubes 20 x 150 mm NS 19/26 provide compact, high-quality glassware for routine laboratory sample handling, heating and short-term storage. Produced from DURAN tubing, they combine excellent chemical resistance with good thermal stability characteristic of borosilicate glass. The tubes feature a round bottom that promotes uniform heat distribution, an ungraduated body for clear observation of contents, and an NS-PE stopper that fits the NS 19/26 ground joint to ensure a reliable seal. Offered in packs of 10 pieces from manufacturer Witeg, each tube has dimensions of 20 mm diameter by 150 mm length and a net weight of 0,024 kg. The standardised joint allows seamless integration with complementary NS glass apparatus, supporting applications such as small-scale reactions, extractions or sample transfer. Their sturdy yet lightweight construction makes them suitable for both educational settings and professional research laboratories where consistent performance and interchangeability are essential. Easy to clean and resistant to common laboratory reagents, these tubes deliver dependable service across a wide range of everyday experimental tasks.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 10 pc(s)
- Dimensions: 20 x 150 mm
- Joint size: NS 19/26
- Stopper type: NS-PE stopper
- Bottom shape: Round bottom
- Graduation: Ungraduated
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Questions about Test tubes 20 x 150mm ST 19/26
What is this article?
Test tubes 20 x 150mm ST 19/26 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.