Description
N 9 septum in silicone white with blue PTFE, slit version, is a replaceable sealing disc for laboratory screw caps and closures on the N 9 format. The white silicone layer faces the sample side in typical stack orientation, while the blue PTFE film provides the chemically oriented contact surface; the septum is supplied geschlitzt (slit) for facilitated needle passage. Hardness is specified at 55° Shore A and thickness at 1,0 mm, defining the mechanical behaviour during piercing and resealing. This N 9 silicone white/PTFE blue slit septum is intended for use where a pre-slit liner of known durometer and gauge is preferred over a solid disc. Packaged as 100 pieces from manufacturer Macherey-Nagel, it supports maintenance and assembly of N 9 closures in analytical and general laboratory environments. Laboratories can standardise septum replacement on the stated silicone/PTFE combination, slit geometry, hardness, and 1,0 mm thickness without relying on unlisted performance grades. The item belongs to routine lab consumables for vial sealing systems based on the N 9 neck size.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Product type: N 9 septum, slit
- Material: silicone white / PTFE blue
- Design: slit (geschlitzt)
- Hardness: 55° Shore A
- EAN: 4046681088438
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Questions about Septa N9 Sil w/PTFE bl (-), 55°, 1.0
What is this article?
Septa N9 Sil w/PTFE bl (-), 55°, 1.0 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.
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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.