Description
Burettes, class B, with straight glass cock are volumetric laboratory instruments designed for controlled dispensing during titration and related measuring procedures. This version provides a 25 ml capacity in DURAN® brown glass with a white graduation that remains easy to read against coloured or light-sensitive solutions. The straight glass cock allows the operator to regulate flow smoothly from a continuous stream down to individual drops, which is essential for accurate endpoint approach. Brown DURAN® glass helps shield contents from ambient light while retaining the chemical robustness expected of quality laboratory glassware. These burettes from manufacturer Hirschmann are supplied as 2 pieces per unit, supporting paired setups in environmental analysis, teaching laboratories, or routine quality-control titration. Class B tolerance covers everyday quantitative work where class A certification is not required. The mid-range 25 ml volume balances sample economy with sufficient titrant reserve for many standard methods. Together, the brown glass body, white scale, and straight stopcock form a practical liquid-handling tool that mounts on ordinary burette stands and integrates into existing titration apparatus without modification. Choose this 25 ml class B model for dependable mid-volume work under routine laboratory conditions.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Product type: Glass burette
- Accuracy class: Class B
- Material: DURAN® brown glass
- Graduation: White graduation
- Stopcock: Straight glass cock
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Questions about Burettes, class B, straight glass cock, DURAN®, brown glass, white grad., 25 ml
What is this article?
Burettes, class B, straight 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.