Description
Short screw cap ND9, blue, with a 1,0 mm PTFE red/silicone white/PTFE red septum is a closed short-thread vial closure for analytical sample handling. The sandwich septum presents PTFE at both contact faces with a soft silicone centre, supporting secure needle penetration while limiting direct sample contact with the elastomer. Pack size is 1000 pieces per pack. The screw cap follows a crimp-cap outline, so it remains suitable for robotic gripper arms in automated workflows. Synthetic elastomer/PTFE constructions of this type are positioned as a cost-effective match to instrument-manufacturer quality; they are softer for reliable piercing than many natural-rubber options, yet are not intended for repeated multiple injections. Offered by manufacturer Altmann Analytik, the closed blue ND9 short screw closure is used for routine sealing of short-thread vials in chromatography and related laboratory sampling. Comparable catalogue references from Agilent, Waters, Chromacol, National Scientific, Finneran, SUN/SRI and Labhut Cronus illustrate typical cross-compatibility in ND9 systems. The 1,0 mm septum build suits single-injection methods where controlled penetration and a stable seal are required.
This article is part of Vial caps & septa, in Vials, caps & septa.
Key features
- Pack size: 1000 pc(s)
- Product type: Short screw cap ND9
- Cap colour: blue
- Septum thickness: 1,0 mm
- Septum material: PTFE red/silicone white/PTFE red
- Closure version: closed short-thread cap
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Questions about ND9 PP Short Thread Cap, blue, 1,0mm
What is this article?
ND9 PP Short Thread Cap, blue, 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?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.