Description
Metal cap for neck Ø 38 mm in blue anodised aluminium provides a lightweight, identifiable closure for microbiological media vessels. In microbiology, pure culture media must support the growth of bacteria, fungi, protozoa or viruses while excluding foreign contaminants; at the same time, continuous air exchange is indispensable for culture development. These aluminium metal caps cover bottles and flasks without creating a gas-tight seal, allowing the necessary gas exchange that fosters a favourable growth environment. The blue anodised finish aids visual identification on the bench. Applications include closing culture tubes or bottles, sealing nutrient-media bottles, storage and transport of liquid cultures, and cell-culture work under sterile conditions in biosafety cabinets and clean-air hoods. Supplied as a single piece, the cap is manufactured from aluminium, finished in blue, and sized for 38 mm neck diameters. The product comes from manufacturer Duran/DWK Life Sciences and is intended for routine laboratory use where reliable, non-gas-tight coverage and clear colour coding are advantageous.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Aluminium
- Colour: Blue
- Neck diameter: 38 mm
- EAN: 4032051061286
- Technical Information Sheet:
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Questions about Metal Cap
What is this article?
Metal Cap is the article on this page. Luminix Health distributes DWK Life Sciences 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. 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.