Description
Septum N 12 Red Rubber/FEP colourless is a replacement sealing disc for laboratory screw caps and vial closures used in analytical sample handling. Manufactured from Red Rubber laminated with colourless FEP, the septum is specified at 45° Shore A hardness and 1,5 mm thickness to balance needle penetrability with effective resealing after injection. Supplied in packs of 100 pieces, these N 12 septa serve as accessories or spare parts for compatible laboratory closures in chromatography, quality control and general sample preparation. The FEP face provides a chemically resistant contact surface toward many solvents, while the Red Rubber body contributes elasticity for repeated piercings. This septum format from manufacturer Macherey-Nagel is intended for users who need consistent liner performance when refurbishing or configuring N 12-compatible caps. Uniform hardness and thickness support predictable sealing behaviour across the pack, making the product a practical consumable for high-throughput GC, HPLC and routine laboratory workflows that rely on dependable vial integrity.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Product type: N 12 septum
- Septum material: Red Rubber/FEP colourless
- Hardness: 45° Shore A
- Septum thickness: 1,5 mm
- EAN: 4046681089275
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Septa N12 RR or/FEP, 45°, 1.5
What is this article?
Septa N12 RR or/FEP, 45°, 1.5 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. 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.