Description
Flexible stopper for sample tubes with Ø 13 mm in blue is a polyethylene laboratory closure for sealing sample tubes in routine lab work. Manufactured from polyethylene, the stopper is flexible and conforms to the tube opening, supporting secure seating on matching tubes. This blue version is intended for tubes with a 13 mm diameter; the same range also covers 16 mm tubes, allowing colour- and size-matched selection across workflows. Colour coding in blue aids visual organisation of sample sets, racks and process steps. Supplied as a pack of 1000 pieces with a net weight of 0,230 kg, the stoppers suit high-throughput sample handling, intermediate storage and transport within the laboratory. From manufacturer Labbox, these polyethylene stoppers (product type ASTIKS) are practical consumables for general laboratory materials use where a flexible, easy-to-fit closure is required. The adaptable fit helps reduce accidental spills and supports tidy tube management without rigid push-fit geometry. Ideal for everyday sample-tube sealing tasks in research, quality control and teaching laboratories that standardise on 13 mm tubes and colour-coded stoppers.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1000 pc(s)
- Material: Polyethylene
- Colour: Blue
- Tube diameter: Ø 13 mm
- Design: Flexible, adapts to tube opening
- EAN: 8434868107236
- GTIN: 08434868106680
- Technical Information Sheet:
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Questions about Flexible stopper for test tubes, for Ø 13 mm tubes, green
What is this article?
Flexible stopper for test tubes, for Ø 13 mm tubes, green is the article on this page. Luminix Health distributes Labbox 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. Delivery across Europe, two to five days when in stock. 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.
