Description
Lamella stoppers for test tubes ID=12–13 mm in blue are polyethylene closures designed for reliable, leak-proof sealing of laboratory test tubes. Large flanges press evenly against the tube wall and the ribbed, conical shape guarantees a secure fit that helps prevent leakage during transport, mixing or temporary storage. The distinct blue colour coding enables rapid visual recognition of sample groups in busy multi-tube workflows. Supplied in packs of 100 pieces, these non-sterile stoppers from manufacturer ISOLAB Laborgeräte suit chemistry, life-science and analytical laboratories working with standard glass or plastic tubes of 12–13 mm inner diameter. Polyethylene construction offers practical chemical resistance for many aqueous applications while remaining easy to insert and withdraw. The fluted profile promotes consistent seating without undue force, supporting efficient sample handling and clear organisation on the bench where dependable colour-coded plastic plugs are essential.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Material: Polyethylene
- Suitable for: Test tubes ID 12–13 mm
- Colour: Blue
- Design: Ribbed conical with large flanges
- EAN: 4250362631985
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Questions about stoppers for tubes - flange - for 12/13 mm tube diameter - P.E - blue
What is this article?
stoppers for tubes - flange - for 12/13 mm tube diameter - P.E - blue is the article on this page. Luminix Health distributes ISOLAB for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Ground-joint glass stoppers, Lids & seals and Closures (other).
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.