Beschrijving
Test tubes AR 18 x 180 mm GL 18 are laboratory glass vessels produced from AR glass with a wall thickness of 1 mm. Each tube has a diameter of 18 mm and a height of 180 mm and features a GL 18 screw closure fitted with a PE gasket for dependable sealing. The pack of 100 pieces supplies laboratories with a practical quantity of larger-format tubes for reagent handling, sample preparation and temporary storage. AR glass construction delivers the clarity and durability required for everyday use in analytical and research environments. These tubes from manufacturer Witeg are designed for straightforward integration into standard laboratory routines and storage systems. The GL 18 thread ensures reliable closure performance while the PE gasket supports a tight seal during transport or agitation. Suitable for chemistry, biology and clinical applications, the tubes offer consistent glass quality and convenient dimensions that facilitate organised sample management and efficient experimental workflows in professional laboratory settings.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 100 pc(s)
- Diameter: 18 mm
- Height: 180 mm
- Wall thickness: 1 mm
- Thread: GL 18
- Material: AR glass
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Questions about Test tubes with screw-thread, AR-glass,
What is this article?
Test tubes with screw-thread, AR-glass, is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Reageerbuizen, inside Buizen & flacons, in Labmateriaal.
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.
Which category should I open next?
The category is Buizen & flacons. The sub-category is Reageerbuizen. The catalogue is Labmateriaal.
Shelves beside this one are Centrifugebuizen (conisch), Monstervials & NMR-buisjes and Buis- & flaconaccessoires.
What should I check before I order?
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.