Description
Rotilabo®-PTFE stopper NS 10/19 is a laboratory stopper intended for standard taper joints on glassware and related apparatus. Made from PTFE, it offers a chemically inert sealing surface suited to routine wet chemistry, sample handling and assembly of conical-joint equipment. The NS 10/19 size matches common small ground joints on flasks, adapters and receivers, supporting interchangeable setups without custom fittings. Each unit is supplied singly and weighs 0,006 kg, making it a compact choice for drawers, kits and multi-joint racks. Within the Rotilabo® line from manufacturer ROTH SELECTION, this stopper sits among stoppers and clamps used with laboratory glass, vessels and consumables. PTFE construction helps maintain clean contact faces where grease-free or low-contamination sealing is preferred, and the solid form is straightforward to rinse and reuse between experiments. Typical contexts include organic and analytical laboratories, teaching benches and quality-control stations that standardise on NS joints. The stopper closes NS 10/19 sockets securely for temporary storage, reaction work-up or transfer steps, contributing to tidy, leak-resistant glassware trains in everyday laboratory practice.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Product type: PTFE stopper with standard taper
- Joint size: NS 10/19
- Material: PTFE
- Brand: Rotilabo®
- Weight: 0,006 kg
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Questions about Rotilabo®-PTFE stopper, NS 10/19, 1 unit(s)
What is this article?
Rotilabo®-PTFE stopper, NS 10/19, 1 unit(s) is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
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 Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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. 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.
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.