Description
Short screw cap ND9 in transparent polypropylene with a 1,0 mm silicone white/PTFE red septum in UltraClean quality is intended for secure sealing of ND9 short-thread vials in chromatographic sample handling. The synthetic RedRubber/PTFE construction offers a cost-effective match to instrument-manufacturer septum quality: it is softer than natural rubber for reliable needle penetration, though it is not intended for repeated multiple injections. The screw-cap geometry follows a crimp-cap style profile, so the closure can be handled by robotic gripper arms as well as manual workflows. UltraClean processing supports low-background analytical work. Pre-slit and pre-cut septum options in the same short-thread family help limit vacuum formation and concentration drift during sampling; this transparent UltraClean version supplies the closed-cap silicone/PTFE laminate at 1,0 mm thickness. Supplied from manufacturer Altmann Analytik in packs of 1000 pieces, the cap is positioned as an alternative to selected Agilent, Waters, Chromacol, National Scientific, Wheaton, Finneran and VWR short-thread closures for routine GC and HPLC autosampler use.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Thread: ND9 short screw
- Cap material: PP, transparent
- Septum: silicone white/PTFE red, 1,0 mm
- Quality: UltraClean
- Septum type: synthetic RedRubber/PTFE
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Questions about ND9 PP Short Thread Cap, transparent, 1,0mm
What is this article?
ND9 PP Short Thread Cap, transparent, 1,0mm 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.