Description
Test tubes with round bottom provide a standard polystyrene (PS) format for everyday laboratory sample handling. Each tube offers a 5 ml nominal volume and measures 12 x 75 mm, a widely used size that fits common racks, water baths and benchtop accessories. The round-bottom design supports mixing, short-term storage and visual inspection of liquids in research, teaching and quality-control settings. Supplied in packs of 1000 units, the tubes suit laboratories that consume disposable PS vessels at scale and need consistent dimensions across batches. These test tubes from manufacturer Ratiolab are intended as general laboratory consumables for sample preparation and transfer. Attention: the article is without CE/IVD marking in future, so users should confirm fitness for any regulated diagnostic application under applicable rules. Material and size data allow straightforward matching to stoppers, caps and existing tube systems without altering established workflows.
This article is part of Round-bottom flasks, in Beakers & flasks. See also Flat-bottom flasks.
Key features
- Pack size: 1000 pc(s)
- Product type: test tubes, round bottom
- Volume: 5 ml
- Material: PS
- Dimensions: 12 x 75 mm
- Bottom shape: round bottom
- Technical Information Sheet:
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Questions about Test tubes, round bottom, 5 ml, PS, 12 x 75 mm, 1000 unit(s)
What is this article?
Test tubes, round bottom, 5 ml, PS, 12 x 75 mm, 1000 unit(s) 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?
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.
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.