Beschrijving
Class AS burette with straight stopcock 25 ml is a precision clear-glass volumetric instrument for accurate titration and quantitative analysis. It offers a nominal capacity of 25 ml with fine 0,05 ml graduations, meeting class AS tolerance requirements for reliable volume delivery. The straight stopcock is fitted with a PTFE plug that provides smooth control, chemical resistance and a secure seal during repeated dispensing. Clear glass construction ensures excellent meniscus visibility for precise readings in analytical workflows. Manufactured by Witeg, the burette is supplied in a pack of 2 pieces and has a net weight of 0,073 kg. Conformity-certified (KB) design supports traceable laboratory procedures in research, quality control and teaching environments. The PTFE key reduces the need for greasing with many reagents while maintaining leak-free performance. Suitable for acid-base, redox and complexometric titrations where class AS accuracy is specified, this straight-stopcock burette integrates easily into standard titration setups and delivers consistent results under routine laboratory conditions.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 25 ml
- Graduation: 0,05 ml
- Accuracy class: AS
- Stopcock: Straight with PTFE plug
- Material: Clear glass
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Questions about Burettes, 25:0,05 ml, class-AS, straight
What is this article?
Burettes, 25:0,05 ml, class-AS, straight is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Burettes, inside Volumetric glassware, in Labmateriaal.
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 Labmateriaal.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.