Description
Screw cap SK N13-L is an N 13 polypropylene screw closure for laboratory vials that require a septa-equipped open-top cap. The black PP shell is combined with a white silicone / blue PTFE septum that is cross-slit for easier needle penetration during sampling or injection. Septum hardness is 45° Shore A and septum thickness is 1,5 mm, giving a defined sealing interface for routine analytical work. The centre hole in the cap allows syringe access while the layered silicone/PTFE face is oriented for chemical contact on the PTFE side as indicated by the blue PTFE layer. Pack size is 100 pieces, suitable for ongoing laboratory use with matching N 13 screw-neck vials. This closure from manufacturer Macherey-Nagel supports sample storage, preparation, and chromatographic workflows where a pre-slit silicone/PTFE liner and a standard N 13 thread are specified. Black cap colour aids quick visual identification on the bench. The combination of PP housing, 1,5 mm septum thickness, and 45° Shore A hardness provides a consistent mechanical profile for repeated handling in everyday lab practice.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Thread: N 13
- Cap material: Polypropylene (PP)
- Cap colour: Black
- Septum: Silicone white/PTFE blue, cross-slit
- EAN: 4046681149924
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Questions about SC N13-H, blk, Sil w/PTFE bl (+),45°,1.5
What is this article?
SC N13-H, blk, Sil w/PTFE bl (+),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. Delivery across the EU, two to five days if 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.
