Description
Burette class B 25 ml Schellbach with straight valve stopcock is a volumetric glassware instrument intended for controlled liquid dispensing in laboratory titration work. It offers a nominal capacity of 25 ml with graduation intervals of 0,05 ml according to class B tolerances, enabling reliable volume delivery for analytical procedures. The Schellbach stripe enhances meniscus visibility and supports clearer volume readings under typical laboratory lighting. A straight valve stopcock provides straightforward flow regulation during titrant addition. Supplied as a pack of 2 pieces from manufacturer Witeg, this burette suits educational laboratories, routine quality-control tasks and general chemical analysis where class B accuracy is appropriate. Its design follows established conventions for Schellbach-type burettes fitted with a straight stopcock, ensuring practical handling on standard stands and titration assemblies. Net weight is specified at 0,056 kg, reflecting a compact glass construction suitable for everyday bench use in quantitative workflows.
This article is part of Burettes, in Volumetric glassware.
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Questions about Burette CL-B 25 ml Schellbach straight valve stopc
What is this article?
Burette CL-B 25 ml Schellbach straight valve stopc 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.

