Description
RIA tubes with round bottom are single-use laboratory sample tubes made from polystyrene (PS) for routine handling of liquid specimens. Each tube has a nominal volume of 4 ml and external dimensions of 11 x 70 mm, giving a compact format suited to racks, centrifuges and benchtop workflows that accept this geometry. The round-bottom profile supports mixing, sedimentation and general sample presentation in radioimmunoassay-style and related analytical procedures. Packaged as 1000 units, the set is practical for high-throughput laboratories that need a steady supply of consistent PS tubes. These consumables from manufacturer Ratiolab are intended for general laboratory use as sample and test tubes. Please note that the article is without CE/IVD marking in future, so suitability for regulated diagnostic claims should be assessed against local requirements. Clear dimensional and material data help match the tubes to existing holders, lids and process SOPs in research, quality control and teaching laboratories.
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: RIA tubes, round bottom
- Volume: 4 ml
- Material: PS
- Dimensions: 11 x 70 mm
- Bottom shape: round bottom
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Questions about RIA tubes, round bottom, 4 ml, PS, 11 x 70 mm, 1000 unit(s)
What is this article?
RIA tubes, round bottom, 4 ml, PS, 11 x 70 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.