Description
Septum N12 is a replacement septum for N 12 laboratory vial closures used in analytical and chromatography sample handling. The laminate combines white silicone with a red PTFE facing, specified at 45° Shore A hardness and 1,3 mm septum thickness. Silicone provides the compressible sealing layer, while the red PTFE surface offers chemical resistance on the sample-contact side, supporting use with a wide range of solvents and matrices. Packs contain 100 pieces and are offered by manufacturer Macherey-Nagel for laboratories that service or reconfigure N 12 closure systems. The defined hardness and thickness help ensure consistent needle penetration and resealing during GC, HPLC or general autosampler operation. Red PTFE colour coding aids quick visual identification of septum type during assembly or inventory checks. These septa are intended as dedicated N 12 components for routine vial sealing where a silicone/PTFE combination at 1,3 mm is required, without altering established vial and cap geometries already in use on the bench or in automated racks.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Product type: N 12 septum
- Material: Silicone white/PTFE red
- Hardness: 45° Shore A
- Septum thickness: 1,3 mm
- EAN: 4046681087639
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Questions about Septa N12, Sil white/PTFE r, 45°, 1.3
What is this article?
Septa N12, Sil white/PTFE r, 45°, 1.3 is the article on this page. Luminix Health distributes Macherey-Nagel 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.
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.
