Description
ND9 PP short thread cap is a black polypropylene screw closure with a 1,0 mm red rubber / beige PTFE septum for chromatography vial sealing. Synthetic red rubber combined with PTFE offers a cost-effective match to instrument-manufacturer septum quality: softer than natural rubber for secure needle penetration, yet intended for single-injection use rather than repeated piercing. The short-thread screw design follows a crimp-cap style outline, making the closure suitable for robotic gripper arms on automated sample handlers. Pre-assembled short-thread options with slit or pre-cut septa are described in the same product family to limit vacuum formation and concentration drift during multiple injections; this black 1,0 mm red rubber/PTFE beige variant addresses standard open-hole ND9 sealing needs. Supplied in packs of 1000 pieces from manufacturer Altmann Analytik, it is listed as an alternative to selected Agilent, Waters, Chromacol, National Scientific, Wheaton, Finneran, SUN/SRI, VWR and Labhut Cronus articles. Ideal for HPLC and GC laboratories working with ND9 short-thread vials.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Thread type: ND9 short thread
- Cap material: PP
- Colour: Black
- Septum thickness: 1,0 mm
- Septum: Red rubber/PTFE beige
- Technical Information Sheet:
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Questions about ND9 PP Short Thread Cap, black, 1,0 mm, Red Rubber/PTFE beige
What is this article?
ND9 PP Short Thread Cap, black, 1,0 mm, Red Rubber/PTFE beige 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.