Description
SK N9-L is an N 9 polypropylene screw cap for laboratory vials, supplied as a colourless transparent open-top closure with a silicone white / PTFE red septum. The septum measures 1,0 mm in thickness and is specified at 45° Shore A hardness, giving a compliant seal while the PTFE face provides a chemically resistant barrier toward the sample. Packaged in units of 100 pieces, the caps suit chromatography, QC sampling and general analytical work where syringe access through the septum is required without removing the closure. The N 9 thread is intended for matching narrow-neck PP or glass vials commonly used in sample preparation and storage. This configuration from manufacturer Macherey-Nagel combines a lightweight PP shell with a bonded dual-layer septum for dependable resealing after needle penetration. Laboratories can integrate the transparent SK N9-L caps into standardised vial workflows that demand consistent hardness, defined septum thickness and straightforward visual inspection of the closure colour and hole geometry.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Thread: N 9
- Material: PP screw cap
- Colour: transparent (colourless)
- Septum: Silicone white/PTFE red
- EAN: 4046681087677
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Questions about SC N9-H, tr, Sil w/PTFE r, 45°, 1.0
What is this article?
SC N9-H, tr, Sil w/PTFE r, 45°, 1.0 is the article on this page. Luminix Health distributes Macherey-Nagel 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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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.