Description
The N 11 snap ring cap is a yellow polyethylene closure with a centre hole and a silicone white/PTFE red septum for snap-ring chromatography vials. Septum hardness is 45° Shore A and septum thickness is 1,0 mm, providing a controlled reseal after needle penetration in GC and HPLC workflows. The open-top design lets the autosampler needle pass through the hole and pierce only the septum, while the PTFE layer faces the sample. Packaged as 100 pieces from manufacturer Macherey-Nagel, these caps support laboratories that use N 11 snap-ring vials and need a consistent PE shell with a defined silicone/PTFE laminate. The yellow colour simplifies visual sorting on the bench and in sample trays. Typical uses include analytical sample injection, short-term storage and method sequences where a snap-on N 11 closure with a 1,0 mm septum is specified. Uniform hardness and thickness across the pack help maintain sealing behaviour during repeated piercings in routine laboratory operation.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Format: N 11 snap ring
- Material: Polyethylene (PE), yellow
- Septum: Silicone white/PTFE red
- Hardness: 45° Shore A
- EAN: 4046681088711
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Questions about SR N11-H, yw, Sil w/PTFE r, 45°, 1.0
What is this article?
SR N11-H, yw, Sil w/PTFE r, 45°, 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.