Description
DURAN® plastic stopper NS 34/35 is a white polyethylene laboratory stopper with an octagonal top designed to close ground-joint glassware. Made from low-density polyethylene (LDPE), the stopper is white with a blue insert and conforms to DIN 12254. Its octagonal head allows secure handling when fitting or withdrawing the closure from flasks and other vessels that carry an NS 34/35 joint. The product is intended for the storage of reagents and chemicals in routine laboratory practice. Delivered as one piece, it has a net weight of 0,012 kg and a gross weight of 0,017 kg. This DURAN® stopper from manufacturer Duran/DWK Life Sciences provides a practical polyethylene option for laboratories needing standardised plastic ground-joint closures. The combination of LDPE material and the octagonal form supports a firm grip and consistent seating during daily reagent storage. It suits research, quality-control and educational settings that rely on the NS 34/35 joint system for flasks and related glassware.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Joint size: NS 34/35
- Material: Low-density polyethylene (LDPE)
- Colour: White with blue insert
- EAN: 4032051062160
- Technical Information Sheet:
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Questions about DURAN® Plastic Stopper, Polyethylene, white, octagonal
What is this article?
DURAN® Plastic Stopper, Polyethylene, white, octagonal is the article on this page. Luminix Health distributes DWK Life Sciences 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?
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.