Description
Burette PTFE stopcock Schellbach 25 ml is a Class B volumetric glassware item for precise titration and quantitative liquid dispensing in analytical laboratories. It provides a 25 ml capacity with 0,05 ml graduations and incorporates the Schellbach stripe that markedly improves meniscus readability against the scale. A removable PTFE stopcock delivers smooth, chemically resistant flow control and can be detached for thorough cleaning or replacement. Supplied as 2 pc(s) with a net weight of 0,066 kg, the burette is suited to routine quantitative analysis, teaching laboratories and quality-control workflows where Class B tolerance is appropriate. These instruments from manufacturer Witeg combine clear Schellbach visibility with a durable PTFE valve, supporting reproducible endpoint determination across a wide range of aqueous and organic reagents. The robust glass construction and practical stopcock design make the unit a reliable choice for daily titration routines in research, industrial and educational chemistry environments that require dependable volumetric glassware.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 25 ml
- Graduation: 0,05 ml
- Accuracy class: B
- Design: Schellbach stripe
- Stopcock: Removable PTFE
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Questions about Burettes, class B, 25 ml:0,05 with new
What is this article?
Burettes, class B, 25 ml:0,05 with new is the article on this page. Luminix Health distributes Witeg 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.