Beschreibung
Burette stopcock for 50 ml with hollow NS plug is a straight stopcock intended for 50 ml burettes. It combines an NS 12,5 joint with a hollow NS plug and a 1,6 mm bore, and is manufactured from DURAN tubing in accordance with DIN 12541. Supplied under the Compact brand from manufacturer Witeg, the component is suited to volumetric titration and other analytical work where controlled reagent delivery is essential. The hollow NS plug seats securely in the stopcock body while the defined bore supports steady, reproducible flow. DURAN glass tubing provides the chemical resistance and thermal behaviour expected of laboratory borosilicate glassware, ensuring dimensional stability during routine use and cleaning. With a net weight of 0,026 kg and supplied as a single piece, the stopcock serves as a replacement or assembly part for compatible 50 ml burettes. Conformity to DIN 12541 promotes interchangeability with standard laboratory glassware systems used in teaching, quality-control and research laboratories.
This article belongs on Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 12,5
- Bore: 1,6 mm
- Plug type: Hollow NS plug
- Standard: DIN 12541
- Material: DURAN tubing
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Questions about Stopcock for burettes 50 ml hollow
What is this article?
Stopcock for burettes 50 ml hollow 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.