Description
Plastic stopper made of polyethylene (PE) to DIN 12254 is intended for laboratory glassware with the larger standard ground joint NS 45/40. The octagonal head gives a firm hold when inserting or extracting the stopper from the taper joint, and the PE body provides a practical, lightweight closure for flasks and vessels in this joint size. Supplied as a single piece, it fits replacement or dedicated use on one NS 45/40 apparatus without overstocking. The design comes from manufacturer Lenz and adheres to DIN 12254 dimensions, ensuring compatibility with other 45/40 ground-joint glassware used in synthesis, storage and sample preparation. Polyethylene suits many general laboratory applications and is straightforward to clean between runs. Approximate weight is 0,023 kg, remaining manageable even on larger necks. This stopper sits in the labware category of stoppers with standard taper and supports laboratories that maintain mixed joint sizes and need a PE option for the 45/40 standard. It is a simple consumable choice when glass stoppers are less desirable for handling, breakage risk or weight on bigger vessels.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Material: PE (polyethylene)
- Standard: DIN 12254
- Ground joint: NS 45/40
- Head shape: Octagonal
- Weight: 0,023 kg
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Questions about Plastic stopper, PE, DIN 12254, standard ground joint 45/40, octagonal
What is this article?
Plastic stopper, PE, DIN 12254, standard ground joint 45/40, octagonal is the article on this page. Luminix Health distributes Lenz 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.