Description
Glass stopper for NS 29/32, brown glass is a ground-joint laboratory stopper designed for the tight sealing of vessels. Built in brown glass to the NS 29/32 joint size and conforming to DIN 12 252, it delivers a dependable conical ground-glass seal for flasks, bottles and related glassware with a matching joint. Brown glass reduces light transmission compared with clear glass, which is useful when vessels contain light-sensitive media or reagents during intermediate storage or laboratory handling. The product is supplied as a single piece with a net weight of 0,035 kg and a gross weight of 0,038 kg, in packaging suited to clear identification and stock control. This stopper from manufacturer Hirschmann supports everyday work in chemical, analytical and research laboratories that use interchangeable DIN ground-joint systems. Its precision-ground contact surface encourages a secure mechanical fit that helps minimise vapour loss and ingress of contaminants when properly seated. Fully compatible with standard NS 29/32 apparatus, it serves as a practical spare or replacement for worn stoppers. Choose this brown glass NS 29/32 stopper wherever a DIN-compliant, light-attenuating closure is needed for reliable vessel sealing.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Storage temperature: +5 - +40 °C
- Joint size: NS 29/32
- Material: Brown glass
- Standard: DIN 12 252
- EAN: 4049338019182
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Questions about GLASSTOPPER F. NS 29/32, AMBER GLASS
What is this article?
GLASSTOPPER F. NS 29/32, AMBER GLASS is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Matériel de laboratoire.
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 Matériel de laboratoire.
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.