Description
Pre-sealed 40 mL N 24 screw-thread vials combine a clear glass bottle with a matching bonded screw cap for ready-to-use sample handling in chromatography and general laboratory workflows. Each vial has an outer diameter of 27,5 mm and an outer height of 95 mm with a flat bottom, and is factory-closed with an N 24 polypropylene screw cap in white. The bonded closure incorporates a natural silicone/colourless PTFE septum of 3,2 mm thickness and 45° Shore A hardness, a 15 mm centre hole and a removable protective lid. Supplied as a pack of 100 pre-assembled units from manufacturer Macherey-Nagel, these bottles reduce preparation steps while supporting consistent sealing performance. The N 24 thread and clear glass body suit routine analytical sampling, storage and transfer tasks where visual inspection of contents is required. The combination of bottle 702023 with cap 702168 delivers a matched vial–septum system for everyday lab use.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 100 pieces
- Bottle volume: 40 mL
- Thread: N 24
- Outer diameter: 27,5 mm
- Outer height: 95 mm
- EAN: 4046681136320
- Technical Information Sheet:
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Questions about Pre-sealed: 702023 + 702168
What is this article?
Pre-sealed: 702023 + 702168 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.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. 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.