Description
DURAN® burette stopcock, side, with PTFE key, complete is a laboratory glassware component for attachment to burettes. It comprises a side-mounted stopcock sleeve with NS 12,5 joint and a PTFE key; the tip is not calibrated. The polished stopcock surface permits grease-free working, reducing contamination risk during titration and volumetric work. Fabricated from borosilicate glass 3.3, the article combines chemical resistance with thermal stability suited to analytical environments. Supplied complete with the PTFE key from manufacturer Duran/DWK Life Sciences, it is intended as a glass article for further processing and direct mounting onto burettes. The side configuration simplifies integration into existing titration stands and volumetric apparatus. Net weight is 0,029 kg per piece. This DURAN® fitting supports reliable liquid control in research, quality-control and teaching laboratories that require robust, grease-free stopcock performance.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Material: Borosilicate glass 3.3
- Joint size: NS 12,5
- Key material: PTFE
- EAN: 4032051053311
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Questions about DURAN® Burette Stopcock, angled, with PTFE key, complete
What is this article?
DURAN® Burette Stopcock, angled, with PTFE key, complete is the article on this page. Luminix Health distributes DWK Life Sciences for laboratory use. It sits in Burettes, inside Volumetric glassware, in Labware.
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 Labware.
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.