Description
NBR stopper, black, with lower diameter 14 mm, upper diameter 18 mm and height 20 mm is a solid laboratory rubber stopper without boreholes. Produced from NBR rubber in black, the tapered form allows reliable seating in corresponding vessel necks and openings. Zero boreholes mean the stopper delivers a full, uninterrupted seal for flasks, tubes and containers. Net weight is 0,00462 kg, offered as a single piece. Stoppers of this type from manufacturer Deutsch & Neumann are standard laboratory accessories for closing glassware in analytical, preparative and educational settings. The precisely stated diameters and 20 mm height support repeatable fit across routine laboratory workflows. NBR elastomer is chosen for durable everyday sealing performance. The black colour assists quick visual sorting within mixed stopper collections. Compact size and modest mass make the item practical for bench use and for keeping samples or reagents under closed conditions during storage or transport within the laboratory.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Material: NBR rubber
- Colour: Black
- Lower diameter: 14 mm
- Upper diameter: 18 mm
- Height: 20 mm
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Questions about stopper NBR, black, bottom diameter: 14 mm top diameter: 18 mm height: 20 mm
What is this article?
stopper NBR, black, bottom diameter: 14 mm top diameter: 18 mm height: 20 mm is the article on this page. Luminix Health distributes Deutsch & Neumann for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
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 Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, 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.