Description
Standard ground glass joint stoppers manufactured from polyethylene (PE) fit NS 29/32 standard taper joints on larger laboratory flasks and related glassware. A red insert identifies the joint size at a glance, which is useful when multiple taper formats are present on one bench. The PE construction provides a lightweight temporary seal against dust and short-term evaporation during preparative chemistry, teaching and general vessel handling. Each pack contains 10 pieces and weighs 0,150 kg, supporting practical restocking of workstations and central stores. Colour-coded inserts help avoid mix-ups between NS sizes in busy multi-user laboratories. These stoppers from manufacturer DWK Life Sciences are intended for everyday closure of ground joints where a durable plastic alternative to glass stoppers is preferred. They belong to the stoppers-with-standard-taper category of labware consumables and address routine sealing needs rather than specialised vacuum or long-term storage duties.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Product type: Standard ground glass joint stopper
- Material: PE
- Joint size: NS 29/32
- Insert colour: red
- Weight: 0,150 kg
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Questions about Standard ground glass joint stoppers, PE, NS 29/32, insert red, 10 unit(s)
What is this article?
Standard ground glass joint stoppers, PE, NS 29/32, insert red, 10 unit(s) 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?
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.