Description
ST60K behrotest® stopper NS19 is a transparent PPC laboratory stopper developed for Karlsruhe bottles and supplied at a length of 97 mm. The NS19 joint format matches standardised glassware used in water analysis, environmental monitoring, and related sample-handling tasks, enabling a secure closure for storage, transport, or preparation. Transparency of the PPC material supports visual inspection around the bottle neck, while the polymer construction provides the chemical resistance needed for everyday laboratory use. The longer 97 mm profile suits Karlsruhe bottle configurations that require this specific stopper length for a proper fit and seal. Offered as a single piece from manufacturer Behr, the ST60K stopper integrates into behrotest® systems and standardised bottle assemblies. It is well suited to environmental laboratories, water-testing facilities, and general wet-chemistry environments that rely on NS19 closures for Karlsruhe vessels. Consistent joint geometry and defined dimensions help maintain reproducible sealing performance across analytical series and routine sample workflows.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Product code: ST60K
- Joint size: NS19
- Material: PPC
- Colour: Transparent
- Length: 97 mm
- Technical Information Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about ST60K
What is this article?
ST60K is the article on this page. Luminix Health distributes Behr 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?
We deliver across the EU, usually within 2 to 5 working days. More is on Delivery across the EU. 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.
