Description
DURAN® burette, brown, class AS, with glass key is a precision volumetric instrument intended for accurate titrimetric applications. Fabricated from chemically highly resistant borosilicate glass 3.3, the 100 ml burette provides precise scaling so that the previously unknown liquid volume needed for titration can be read very accurately once the reaction is finished. Calibration is carried out for delivery (“Ex”) at +20 °C reference temperature; adhesion of liquid to the glass wall is allowed for during adjustment, enabling quantities to be withdrawn exactly according to the scale. Volume tolerances meet the error limits of ISO and DIN. The brown glass affords UV protection for work with light-sensitive solutions. Main-point ring graduation, a straight NS stopcock fitted with a glass key and a waiting time of 30 seconds complete the functional design. Burettes of accuracy class AS that carry a batch number are delivered with a batch certificate documenting the mean value obtained from the batch measurement, the standard deviation and the date of issue; certificates can also be accessed online. Suited to titration of light-sensitive liquids, volumetry and volumetric analysis, this DURAN® burette from manufacturer Duran/DWK Life Sciences offers reliable performance. Pack contains 2 pieces.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Nominal volume: 100 ml
- Material: Borosilicate glass 3.3
- Accuracy class: AS
- Stopcock: Glass key, straight NS stopcock
- EAN: 4032051325753
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Questions about DURAN® Burette, amber, Class AS, with glass key, CoC, batch certificate
What is this article?
DURAN® Burette, amber, Class AS, with glass key, CoC, batch certificate 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.