Description
SK N9-L is an N 9 polypropylene screw cap designed for laboratory vial sealing in analytical and chromatography workflows. The transparent, colourless PP cap features a centre hole and is fitted with a slit silicone white/PTFE blue septum. Septum hardness is specified at 55° Shore A with a septum thickness of 1,0 mm, supporting reliable needle penetration and resealing during sampling or injection. The white silicone face provides the elastomeric seal while the blue PTFE layer offers chemical resistance toward the sample side. Supplied in packs of 100 pieces from manufacturer Macherey-Nagel, these N 9 screw closures suit routine use with matching N 9 threaded vials in HPLC, GC and general laboratory sample handling. The slit geometry facilitates automated or manual piercing without excessive coring. Cap and septum dimensions follow the established N 9 format, enabling straightforward replacement or stocking alongside standard short-thread vial systems. Ideal for laboratories that require consistent, colour-coded transparent closures with a defined silicone/PTFE laminate for everyday analytical work.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Product type: N 9 PP screw cap, transparent with centre hole
- Septum: Silicone white/PTFE blue, slit
- Hardness: 55° Shore A
- Septum thickness: 1,0 mm
- EAN: 4046681087653
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Questions about SC N9-H, tr, Sil w/PTFE bl, (-) 55°, 1.0
What is this article?
SC N9-H, tr, Sil w/PTFE bl, (-) 55°, 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.