Description
Septa Ø 22 mm, ND24, 2,5 mm, 55° provide laminated sealing discs for ND24 screw-cap autosampler vials and related laboratory sample bottles. Each piece has a diameter of 22 mm and a thickness of 2,5 mm at 55° hardness, built as a red butyl elastomer laminated with a grey PTFE layer. The thicker 2,5 mm profile offers a robust sealing path for needle penetration and resealing during chromatographic or general analytical sample handling. PTFE on the sample side helps reduce unwanted interactions, while the butyl body maintains mechanical resilience under repeated use conditions typical of autosampler workflows. These septa are intended for pairing with matching ND24 open-top screw caps. Available from manufacturer ROTH SELECTION in high-count laboratory packs of 1000 pc(s), with a pack weight of 1,310 kg for straightforward inventory control. Choose this butyl red/PTFE grey septum when an ND24 system calls for Ø 22 mm discs at 2,5 mm thickness and 55° hardness.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Diameter: Ø 22 mm
- Neck finish: ND24
- Thickness: 2,5 mm
- Hardness: 55°
- Material: butyl red/PTFE grey
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Questions about Septa Ø 22 mm, ND24, 2.5 mm, 55°, Butyl red/PTFE grey, 1000 unit(s)
What is this article?
Septa Ø 22 mm, ND24, 2.5 mm, 55°, Butyl red/PTFE grey, 1000 unit(s) is the article on this page. Luminix Health distributes Carl Roth 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.