Description
SR N11-L is a transparent N 11 polyethylene snap ring cap fitted with a centre hole and a Red Rubber/FEP colourless septum for reliable vial sealing in analytical workflows. The septum is specified at 45° Shore A hardness with a thickness of 1,0 mm, supporting consistent needle penetration and resealing during sampling and chromatography applications. Designed for N 11 neck finishes, the colourless PE ring cap keeps the septum clearly visible and is suited to routine laboratory use where chemical resistance of the FEP-faced liner and the elasticity of the red rubber layer are both required. Supplied in packs of 100 pieces from manufacturer Macherey-Nagel, these closures are intended for laboratories that need standardised snap-ring seals with defined septum geometry. The open-hole design allows direct access through the septum while the PE snap ring holds the liner firmly in place. Typical use includes sample storage, autosampler vials and general analytical preparation where a transparent N 11 snap ring cap with RR orange/FEP septum is specified.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Product type: N 11 PE snap ring cap
- Colour: Transparent / colourless
- Septum: Red Rubber/FEP colourless, centre hole
- Hardness: 45° Shore A
- EAN: 4046681086595
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Questions about SR N11-H, tr, RR or/FEP, 45°, 1.0
What is this article?
SR N11-H, tr, RR or/FEP, 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.
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.

