Description
Sample tubes, PS, 18 x 105 mm, round bottom are clear polystyrene vessels intended for collection, storage and handling of liquid or solid laboratory samples. Each tube has a diameter of 18 mm and a height of 105 mm, with a round bottom form and a nominal volume of 0,012 l. The glass-clear polystyrene (PS) material provides good visibility of contents during routine inspection and processing. Supplied in a pack of 1500 pc(s) from manufacturer Ratiolab, these sample tubes are well suited for general laboratory use in research, clinical and industrial environments. The round-bottom geometry supports efficient mixing and centrifugation-compatible handling where appropriate, while the transparent walls allow straightforward observation of sample condition. Non-sterile by specification, the tubes serve as practical consumables for temporary sample holding, reagent aliquots and intermediate processing steps. Their standardised dimensions fit common racks and holders, enabling organised workflows across sample preparation, transport within the laboratory and short-term storage of non-critical materials.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1500 pc(s)
- Storage temperature: 10-50 °C
- Material: Polystyrene (PS)
- Dimensions: 18 x 105 mm
- Bottom shape: Round
- EAN: 4250958301971
- Technical Information Sheet:
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Questions about Test Tubes, PS, 18 x 105 mm, round bottom
What is this article?
Test Tubes, PS, 18 x 105 mm, round bottom is the article on this page. Luminix Health distributes Ratiolab for laboratory use. It sits in Round-bottom flasks, inside Beakers & flasks, in Labware.
A round-bottom flask is the heating flask of a distillation or a reflux. The curved wall takes the heat, and the ground neck connects to a still head or a condenser. The joint size, not only the volume, has to match the rest of the set.
A beaker is an open working vessel: easy to pour, poor as a measure. An Erlenmeyer flask has a flat base and a conical wall so a liquid can be swirled without climbing out. A round-bottom flask is for heating under a condenser, because the heat meets a curved wall and the joint at the neck connects to the rest of the glassware. Borosilicate is the glass that survives the temperature change. These forms are listed under ISO laboratory glassware.
Which category should I open next?
The category is Beakers & flasks. The sub-category is Round-bottom flasks. The catalogue is Labware.
Shelves beside this one are Beakers, Erlenmeyer flasks, Reaction vessels & jacketed vessels, Flat-bottom flasks, Flasks (other) and Beaker & flask 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.
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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.
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.