Description
neochrom® screw caps ND9 with hole are blue polypropylene short-thread closures for chromatography vials, combining a 9-425 thread with a 6 mm centre opening. Each cap carries a white silicone/red PTFE septum that is pre-slit and 1,0 mm thick, intended for single-injection use. The silicone/PTFE septum is temperature-resistant from −60 °C to +200 °C and is widely applied in GC and HPLC workflows. Supplied in packs of 100 pieces from manufacturer neolab - Labor, these coloured ND9 open-hole caps support clear visual identification on the bench while the slit septum eases needle penetration and helps limit coring. They serve as a practical standard closure for short-thread ND9 vials in routine analytical sample preparation and instrument injection sequences. Suitable wherever reliable ND9 screw-cap performance is needed in the laboratory.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Brand: neochrom®
- Material: PP, blue
- Thread: 9-425 short thread
- Hole diameter: 6 mm
- EAN: 4058072085964
- Technical Information Sheet:
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Questions about neochrom® screw cap ND9 with hole, blue, septum silicone white/PTFE red, slit
What is this article?
neochrom® screw cap ND9 with hole, blue, septum silicone white/PTFE red, slit 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.