Beschreibung
Burette stopcock for 50 ml with lateral NS plug is a specialised laboratory glassware component for precise liquid control in volumetric analysis and titration work. Made from DURAN tubing, it is intended for 50 ml burettes and conforms to DIN 12541. The lateral design incorporates an NS 12,5 ground joint and a bore of 1,6 mm, supporting controlled reagent delivery during analytical procedures. An NS-PTFE plug provides a dependable seal for routine laboratory handling. With a net weight of 0,031 kg, the compact stopcock fits standard burette assemblies without adding bulk. This accessory from manufacturer Witeg is suited to analytical chemistry, quality-control and teaching laboratories that use DURAN glass components. The lateral NS arrangement allows straightforward connection within existing glass apparatus for quantitative dispensing and titration workflows where reproducible flow control is required on larger burette volumes.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc(s)
- Suitable for: 50 ml burettes
- Joint size: NS 12,5
- Bore diameter: 1,6 mm
- Standard: DIN 12541
- Plug type: NS-PTFE
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Questions about Stopcock f. burettes 50ml lat. PTFE-plug
What is this article?
Stopcock f. burettes 50ml lat. PTFE-plug is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Burettes, inside Volumetric glassware, in Laborbedarf.
A burette delivers a measured volume through a stopcock, which is how a titration is read. Class A and class AS state the tolerance. The stopcock, glass or PTFE, and the volume of the burette are the choices. A dirty bore changes the delivered volume.
Volumetric glassware is glass that has been calibrated to contain or to deliver one stated volume at a reference temperature. That calibration is the whole point. Class A and class AS have a tighter tolerance than class B. A volumetric flask contains. A pipette and a burette deliver. A measuring cylinder is the coarser reading, used when the volume is not the result. The classes sit under ISO laboratory glassware. The chain back to the unit of volume is the work of the BIPM and of NIST.
Which category should I open next?
The category is Volumetric glassware. The sub-category is Burettes. The catalogue is Laborbedarf.
Shelves beside this one are Volumetric flasks, Measuring cylinders, Mixing cylinders and Volumetric accessories & certificates.
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.