Description
DURAN® Micro Burette, Class AS, with Schellbach stripe and PTFE key is a precision volumetric instrument for titrimetric work. Made from chemically highly resistant borosilicate glass 3.3, this 10 ml micro burette features precise scaling that allows the liquid volume required for titration to be read accurately after the reaction is complete. Adjustment is performed for delivery (“Ex”) at a reference temperature of + 20 °C, so dispensed quantities match the scale exactly because liquid adhesion to the glass is accounted for during calibration. Volume tolerances comply with ISO and DIN error limits for accuracy class AS. The straight NS stopcock is fitted with a PTFE key that needs no greasing, simplifying laboratory handling compared with glass keys. A Schellbach stripe improves meniscus readability and main-point ring graduation is provided; the waiting time is 30 seconds. Class AS burettes carrying a batch number are supplied with a batch certificate (CoC) that documents the mean value of the measured batch, the standard deviation and the issue date; certificates are also available online. Suitable for titration, volumetry and quantitative analysis, this instrument from manufacturer Duran/DWK Life Sciences is offered as a pack of 2 pieces.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Nominal volume: 10 ml
- Material: Borosilicate glass 3.3
- Accuracy class: AS
- Stopcock: Straight NS with PTFE key
- EAN: 4032051325890
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Questions about DURAN® Microburette, Class AS, Schellbach stripe, PTFE key, CoC, batch
What is this article?
DURAN® Microburette, Class AS, Schellbach stripe, PTFE key, CoC, batch 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.