Description
DURAN® test tube with straight rim is a thick-walled laboratory vessel made from borosilicate glass 3.3, offering a nominal volume of 6 ml and measuring 12 mm in diameter by 75 mm in length. Equipped with a round bottom and straight rim, it is particularly suited to reaction monitoring, test series and preliminary sampling where only small substance quantities are required. Transforming substances and liquids into other states of aggregation in order to initiate subsequent reactions forms a core part of daily laboratory work, and this tube supports those operations reliably. Its substantial wall thickness confers high mechanical strength, while the white print is fired in for permanent durability. Typical uses encompass heating of small volumes, preliminary tests, and the storage or transport of modest liquid amounts. This glassware from manufacturer Duran/DWK Life Sciences comes in packs of 100 pieces and integrates smoothly into chemical, analytical and educational laboratory routines.
This article is part of Test tubes, in Tubes & vials.
Key features
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about DURAN® Test Tube, with straight rim
What is this article?
DURAN® Test Tube, with straight rim 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?
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.
How does ordering and shipping work?
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.
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.

