Description
Headspace vial N18-20 is a 20 mL N 18 screw-thread glass vial with a clear body, rounded bottom and integrated write-on patch for sample identification. Outer diameter measures 22,5 mm and outer height 75,5 mm, giving a compact geometry suited to headspace autosamplers and manual workflows. The marking field allows direct labelling without extra tags, supporting traceable sample handling in busy laboratories. Supplied in packs of 100 pieces, the vials are intended for headspace gas chromatography and related analytical preparation steps. Clear glass permits visual checks of fill level and sample condition, while the rounded base promotes stable seating in racks and instruments. Thread finish N 18 accepts compatible screw caps and septa for secure closure during equilibration. Produced by Macherey-Nagel, this variant combines standardised 20 mL headspace dimensions with a practical writing area for organised laboratory use.
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: Clear glass
- EAN: 4046681168697
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Questions about Vial N18-20, SC, c,22.5x75.5,rd.,label
What is this article?
Vial N18-20, SC, c,22.5x75.5,rd.,label 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.

