Description
neochrom® Headspace Cap ND 20 colourless is a pre-assembled crimp closure with septum, fitted with pressure relief through a predetermined break point for controlled headspace work. The blue silicone/PTFE septum is 3,0 mm thick and is specified for easy needle penetration during sampling. Temperature resistance from −60 °C to 200 °C supports use in critical analytical applications where thermal cycling and reliable sealing are required. These ND 20 aluminium crimp caps suit standard headspace vials and form part of the neochrom® range from manufacturer neolab - Labor. The colourless shell gives a clear bench-side appearance while the PTFE-faced silicone laminate helps protect sample integrity under analysis conditions. Supplied in packs of 100 pieces, the closures are intended for gas-chromatography headspace workflows and related laboratory methods that demand consistent septum performance and defined overpressure behaviour. The combination of pressure-relief design, defined septum thickness and broad temperature window makes the cap a practical choice for routine and demanding volatile analyses.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Product type: Headspace crimp cap ND 20
- Colour: Colourless
- Septum: Silicone blue/PTFE
- Septum thickness: 3,0 mm
- EAN: 4058072030674
- Technical Information Sheet:
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Questions about neochrom® headspace cap ND 20 colourless, pressure relief, silicone blue/PTFE
What is this article?
neochrom® headspace cap ND 20 colourless, pressure relief, silicone blue/PTFE is the article on this page. Luminix Health distributes neolab for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).
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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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.