Description
Burettes, class B, with side glass cock are DURAN® brown-glass titration instruments intended for reliable volumetric delivery in analytical laboratories. This 25 ml version combines amber glass with white graduations so the scale remains easy to read while the coloured body offers reduced light transmission for light-sensitive reagents. The side-mounted glass cock enables precise control of titrant flow during acid–base, redox and other routine titrations. Class B performance is appropriate for environmental analysis, general measuring methods and everyday quantitative work where certified class A glassware is not required. The 25 ml capacity balances working volume with handling convenience on a standard burette stand. Available as a pack of 2 pc(s) from manufacturer Hirschmann, the pair is practical for teaching labs and quality-control benches. Approximate weight is 0,370 kg per piece. These brown-glass burettes support consistent liquid handling in titration workflows that depend on durable class B volumetric glassware with a lateral stopcock.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 25 ml
- Accuracy class: B
- Material: DURAN® brown glass
- Graduation: White
- Stopcock: Side glass cock
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Questions about Burettes, class B, side glass cock, DURAN®, brown glass, white grad., 25 ml
What is this article?
Burettes, class B, side glass cock, DURAN®, brown glass, white grad., 25 ml is the article on this page. Luminix Health distributes Hirschmann 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.

