Description
Closure caps for test tubes, Labocap 17/18 blue, are aluminium tube caps designed for microbiological, bacteriological and biotechnological laboratories. Matched to 17/18 test tubes, they protect samples from external contamination and provide a sterilizable yet non-hermetic closure that allows the desired air exchange. Constructed from high-quality aluminium, each cap contains an internal spring of nickel-plated steel that retains the closure on the tube while enabling controlled gas exchange during incubation or handling. The caps are autoclavable and temperature-resistant up to 140 °C, supporting repeated sterilization without compromising fit. These blue Labocap closures from manufacturer Labbox come in a pack of 10 pieces with a net weight of 0,050 kg, suited to everyday culture work and sample protection on the bench. Colour coding simplifies organisation of tube sets, and the aluminium spring design delivers reliable mechanical hold with breathable sealing for laboratory applications that require sample safeguarding without a fully airtight seal on standard test-tube formats.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Product type: LABOCAP
- Size: 17/18
- Colour: blue
- Material: high-quality aluminium with nickel-plated steel spring
- EAN: 8434868106314
- GTIN: 08434868106314
- Technical Information Sheet:
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Questions about Test tube caps, Labocap, 17/18, blue, 10 pcs
What is this article?
Test tube caps, Labocap, 17/18, blue, 10 pcs is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, 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.
