Description
Screw caps for sample vials 9-425 with pre-perforated silicone/PTFE septum are polypropylene closures matched to vials carrying the 9-425 thread. In the pre-slit design the septum is already perforated so that needle entry remains smooth and injection performance stays consistent during routine analytical work. These caps support sample handling in chromatography workflows where reliable sealing and repeatable septum penetration are essential. Each pack contains 100 pieces and has a net weight of 0,030 kg, giving laboratories a practical stock unit for daily vial preparation. The polypropylene body combined with the silicone/PTFE septum is intended for use with standard sample vials in HPLC and related techniques. Offered by manufacturer Labbox within the METRIA range, the closures belong to the chromatography accessories category and suit both manual and automated injection sequences. Pre-perforation reduces the force needed at first puncture and helps maintain septum integrity across successive injections, making the caps a convenient consumable for analytical laboratories that rely on 9-425 threaded vials.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Material: polypropylene
- Thread: 9-425
- Septum: pre-perforated silicone/PTFE
- Colour: red
- EAN: 8434868105874
- GTIN: 08434868105874
- Technical Information Sheet:
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Questions about Screw cap for 9-425 vials with white silicone/PTFE septa, red, 100 pcs
What is this article?
Screw cap for 9-425 vials with white silicone/PTFE septa, red, 100 pcs is the article on this page. Luminix Health distributes Labbox for laboratory use. It sits in Vial caps & septa, inside Vials, caps & septa, in Chromatography equipment.
A vial cap and a septum have to match the vial neck: crimp, screw or snap, and the diameter. The septum material, PTFE/silicone or rubber, decides chemical resistance and how many times a needle can pierce it. A septum that sheds into the solvent becomes ghost peaks.
An autosampler vial is the small closed bottle a chromatograph picks up. The neck is crimp, screw or snap, and the cap and the septum have to be that neck. The septum is the part the needle pierces. A soft septum reseals. A septum that is wrong for the solvent swells or sheds particles into the sample. Inserts reduce the volume when the sample is scarce. The separation they feed is described with IUPAC names and PubChem data.
Which category should I open next?
The category is Vials, caps & septa. The sub-category is Vial caps & septa. The catalogue is Chromatography equipment.
Shelves beside this one are Chromatography accessories, Autosampler vials, Crimpers & decappers and Vial inserts.
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.
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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.