Description
DURAN® plastic stopper NS 45/40 is a white polyethylene laboratory stopper with an octagonal top for sealing larger ground-joint glassware. Manufactured from low-density polyethylene (LDPE), it is finished white with a blue insert and conforms to DIN 12254. The octagonal head provides a secure grip for insertion and removal on flasks and vessels equipped with an NS 45/40 joint. It is intended for the storage of reagents and chemicals in standard laboratory workflows. Supplied as a single piece, the stopper has a net weight of 0,019 kg and a gross weight of 0,036 kg. This DURAN® component from manufacturer Duran/DWK Life Sciences offers a practical polyethylene closure for laboratories that require standardised plastic stoppers on larger ground joints. LDPE construction together with the octagonal form supports reliable handling and a consistent fit during routine reagent storage. Suitable for research, analytical and teaching laboratories using NS 45/40 glassware, the stopper fits existing joint systems without special adapters.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Storage temperature: Standard
- Joint size: NS 45/40
- Material: Low-density polyethylene (LDPE)
- Colour: White with blue insert
- EAN: 4032051062184
- Technical Information Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
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.