Description
Short screw cap, ND9 PP, transparent, 1,0 mm, PTFE red/silicone white/PTFE red is a short-thread vial closure for analytical chromatography. The transparent polypropylene ND9 cap carries a 1,0 mm multilayer septum of red PTFE, white silicone and red PTFE, combining chemical resistance with controlled needle penetration. The screw-cap geometry follows a crimp-cap style profile, so it remains compatible with robotic gripper arms in automated sample handling. Related configurations in this product family include closed versions and mounted short-thread closures with slotted septa to limit vacuum build-up during multiple injections; pre-cut (Y-slit) carrier designs keep the PTFE laminate intact to reduce concentration fluctuations. Pack size is 1000 pc(s) for routine laboratory supply. From manufacturer Altmann Analytik, this transparent ND9 closure suits HPLC and autosampler work where a PTFE/silicone/PTFE septum and short-screw format are specified. It is offered as a practical alternative to selected Wheaton, Finneran and VWR references in comparable ND9 applications.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Product type: ND9 short screw cap
- Cap material: Polypropylene (PP), transparent
- Septum: PTFE red/silicone white/PTFE red
- Septum thickness: 1,0 mm
- Thread: ND9 short screw
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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.