Description
Poly stopper/PE NS 7/16 is a laboratory stopper produced from high-density polyethylene (HDPE) and dimensioned for standard ground joints of size NS 7/16. It belongs to the product groups of standard ground-joint stoppers and plastic stoppers used throughout chemical, analytical and general laboratory work. The HDPE construction provides a reliable seal for glassware and apparatus fitted with matching NS 7/16 conical joints. Supplied as a single piece, the stopper offers a practical, chemically resistant closure option for vessels, flasks and other laboratory equipment that employ the NS 7/16 joint standard. Material designation is high-density polyethylene, ensuring dimensional stability and ease of handling during routine laboratory operations. The NS 7/16 size corresponds to the widely recognised ground-joint geometry employed in European laboratory glassware systems. This stopper from manufacturer IDL GmbH is intended for everyday sealing tasks where a durable polyethylene alternative to glass stoppers is preferred. Pack size is one piece, suitable for individual replacement or stock replenishment in laboratory inventories.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Joint size: NS 7/16
- Material: High-density polyethylene (HDPE)
- Product type: Poly stopper
- Technical Information Sheet:
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Questions about PE stopper, for standard ground joint ST 7/16
What is this article?
PE stopper, for standard ground joint ST 7/16 is the article on this page. Luminix Health distributes IDL GmbH 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.