Description
GAK N20 is an N 20 aluminium full tear-off cap in silver, fitted with a white silicone / beige PTFE septum. The septum hardness is 45° Shore A and the septum thickness is 3,0 mm, supporting dependable sealing on compatible chromatography vials and related laboratory containers. Full tear-off aluminium construction allows complete removal of the cap disc when open access to the vial contents is required, while the silicone–PTFE laminate combines resealing properties with a chemically resistant contact face. Packs contain 100 pieces for routine laboratory stocking. Suitable as a chromatography and general labware accessory, this GAK N20 format from manufacturer Macherey-Nagel addresses workflows that need a silver aluminium tear-off closure together with a clearly specified septum hardness and thickness for consistent sample handling and analysis preparation.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Cap type: N 20 aluminium full tear-off cap
- Colour: Silver
- Septum: Silicone white/PTFE beige
- Hardness: 45° shore A
- EAN: 4046681136559
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Questions about COTO N20, si, Sil w/PTFE bg, 45°, 3.0 mm
What is this article?
COTO N20, si, Sil w/PTFE bg, 45°, 3.0 mm 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.
