Description
ND8 silicone white/PTFE red UltraClean closure with black polypropylene cap is a screw-thread vial seal for chromatography and related analytical sample handling. The septum combines white silicone with a red PTFE face in an UltraClean configuration and is PTFE-coated on both sides to reduce particle formation during needle penetration. Temperature resistance from –60 °C to 200 °C supports use across refrigerated storage, ambient autosampler trays and elevated injection conditions within that range. Silicone/PTFE is presented as cleaner than natural rubber, RedRubber or butyl, with hardness options selected to match needle penetration needs. The black PP open-top style ND8 closure is intended for standard 8 mm screw-thread vials used in GC and HPLC workflows. Supplied in packs of 1000 pieces, the format suits instrument laboratories and central consumable stores. This closure from manufacturer Altmann Analytik is positioned as an alternative to selected Agilent, Waters, Chromacol, National Scientific, Wheaton, VWR and related catalogue references, giving laboratories a compatible ND8 sealing option for routine multi-injection sequences.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Thread size: ND8
- Septum: Silicone white/PTFE red, UltraClean
- Cap: Polypropylene (PP), black
- Temperature range: –60 °C to 200 °C
- Coating: PTFE-coated on both sides
- Technical Information Sheet:
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Questions about ND8 Silicone white/PTFE red, UltraClean, Seal (PP), black
What is this article?
ND8 Silicone white/PTFE red, UltraClean, Seal (PP), black is the article on this page. Luminix Health distributes Altmann Analytik 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.