Description
Test tubes with beaded rim are thick-walled DURAN® laboratory glass vessels designed for small-volume sample handling, qualitative tests and routine observation in analytical and research settings. Each tube provides a nominal capacity of 4 ml and a reinforced beaded rim that improves grip, reduces chipping risk at the mouth and helps seating of suitable closures where the method requires them. The thick-walled DURAN® glass construction supports everyday thermal and mechanical use, while the transparent body enables clear visual checks of reactions, precipitates and colour development. Delivered as a pack of 100 pieces with a total weight of 0,460 kg, the format is convenient for high-throughput benches, teaching laboratories and shared consumable stocks. These tubes from manufacturer DWK Life Sciences match common small test-tube racks and holders and slot readily into standard sample-preparation and screening workflows. They are appropriate for general chemistry, life-science and quality-control applications that call for compact, reusable glass test tubes with a beaded rim and a 4 ml working volume.
This article is part of Test tubes, in Tubes & vials.
Key features
- Pack size: 100 pc(s)
- Product type: Test tubes, beaded rim
- Glass type: DURAN®
- Wall: Thick walled
- Capacity: 4 ml
- Rim: Beaded rim
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Questions about Test tubes, beaded rim, DURAN®, thick walled, 4 ml, 100 unit(s)
What is this article?
Test tubes, beaded rim, DURAN®, thick walled, 4 ml, 100 unit(s) is the article on this page. Luminix Health distributes DWK Life Sciences 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.
Which category should I open next?
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.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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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Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.