Description
I-Chem™ open-top closures with septum, 24-414 mm, bonded are specialised laboratory closures for volatile organic compound sampling and analysis. Each round open-top cap incorporates a molded-in bonded septum 0,045″ thick, giving a secure, pierceable barrier for syringe access while helping protect sample integrity in VOA workflows. The closures are untreated, without separate lining material, and are processed to meet performance-based EPA specifications for volatile organic compound analysis. Manufacture takes place in an ISO-certified quality management system. Supplied as bulkware in a case of 24 pieces from manufacturer Thermo Scientific - Laboratory Plastics, the 24-414 mm closure size matches common laboratory sample containers used in environmental and analytical testing. These I-Chem™ septum closures support routine handling wherever certified open-top caps are specified for VOC protocols. The pack has a gross weight of 0,280 kg and a packaging volume of 0,008 m³, simplifying storage and distribution. Designed as round open-top caps with bonded septa, they provide a practical closure option for laboratories performing EPA-aligned volatile organic analyses and related sample preparation steps.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: Case of 24
- Closure size: 24-414 mm
- Closure type: Open-top with bonded septum
- Septum thickness: 0,045″
- Shape: Round
- Certification: EPA VOA performance specifications
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Questions about I-Chem™ Open-Top Septa Caps, 24-414mm, bonded septa, bulk
What is this article?
I-Chem™ Open-Top Septa Caps, 24-414mm, bonded septa, bulk is the article on this page. Luminix Health distributes Thermo Scientific - Laboratory Plastics for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).
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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.

