Description
Headspace vial N18-20 is a 20 mL amber screw-thread glass vial for headspace applications, fitted with an N 18 thread. Outer diameter is 22,5 mm and outer height is 75,5 mm; the brown glass and rounded bottom protect light-sensitive samples while supporting stable instrument seating. Packs contain 100 pieces for routine laboratory supply. Amber glass reduces light exposure during storage and preparation, which is useful when analytes may degrade under ambient illumination. The N 18 screw finish works with matching caps and septa to maintain a tight seal through heating and equilibration cycles typical of headspace GC. Rounded base geometry aids consistent placement in trays and autosamplers. These vials from manufacturer Macherey-Nagel provide standardised 20 mL headspace containers with defined external dimensions for analytical sample handling where light protection and clear thread compatibility are required.
This article is part of Autosampler vials, in Vials, caps & septa.
Key features
- Pack size: 100 pc(s)
- Type: 20 mL headspace screw-thread vial N 18
- Outer diameter: 22,5 mm
- Height: 75,5 mm
- Colour: Amber glass
- EAN: 4046681086298
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Questions about Vial N18-20, SC, a, 22.5x75.5, rounded
What is this article?
Vial N18-20, SC, a, 22.5x75.5, rounded is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Autosampler vials, inside Vials, caps & septa, in Chromatography equipment.
An autosampler vial is sized for the tray it will sit in. Neck finish, volume, clear or amber glass, and whether an insert is needed are the choices. Amber is for light-sensitive samples. A 2 mL vial is the ordinary one. A vial from a different neck standard takes a different cap.
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 Autosampler vials. The catalogue is Chromatography equipment.
Shelves beside this one are Vial caps & septa, Chromatography accessories, 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.
