Description
Natural rubber (NR) stopper for butyrometer, lower diameter 11 mm, is a solid laboratory sealing component intended for butyrometers used in milk-fat determination and dairy analysis. It features an upper diameter of 16 mm, a height of 43 mm and zero bores, providing a tight, reliable seal that maintains sample integrity during centrifugation and measurement. Manufactured from natural rubber, the stopper combines elasticity with chemical resistance suitable for repeated insertion and removal under routine laboratory conditions. With a net weight of only 0,00736 kg, the lightweight design supports precise handling in high-throughput testing environments. Available as a single piece from manufacturer Deutsch & Neumann, this stopper matches common butyrometer neck dimensions and integrates directly into existing glassware setups without adapters. It is well suited for food-quality control, dairy research and industrial laboratories that require consistent sealing performance and dimensional accuracy for reproducible analytical results.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: Natural rubber (NR)
- Upper diameter: 16 mm
- Lower diameter: 11 mm
- Height: 43 mm
- Bores: 0
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Questions about stopper for Butyrometer Naturkautschuk (NR), bottom diameter: 11 mm top
What is this article?
stopper for Butyrometer Naturkautschuk (NR), bottom diameter: 11 mm top 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.