Description
DURAN® burette Class B with straight NS stopcock is a precision laboratory burette engineered for titrimetric and volumetric analysis. Made from chemically highly resistant borosilicate glass 3.3, this 50 ml model carries a precise scale enabling the previously unknown liquid volume required for a titration to be read with high accuracy once the reaction is complete. Adjustment is performed to deliver (Ex) at a reference temperature of +20 °C, so that dispensed volumes correspond exactly to the scale markings because liquid adhesion on the glass is accounted for during calibration. Volume tolerances comply with the error limits specified by ISO and DIN for accuracy class B. The straight NS stopcock delivers reliable control of liquid flow during measure analysis. Burettes of this series are supplied with glass or PTFE keys; PTFE keys need no greasing and therefore simplify daily laboratory practice. Offered by manufacturer Duran/DWK Life Sciences, the instrument is well suited to titration, volumetry and quantitative work where class B precision and chemical resistance are essential. Robust construction and clear graduation promote reproducible results in standard analytical procedures.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Nominal volume: 50 ml
- Material: Borosilicate glass 3.3
- Accuracy class: B
- EAN: 4032051029286
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Questions about DURAN® Burette Class B, with straight standard ground stopcock
What is this article?
DURAN® Burette Class B, with straight standard ground stopcock 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.