Description
Class AS burette with straight stopcock 25 ml is a precision volumetric glassware item intended for accurate titration and quantitative analysis in analytical laboratories. It offers a nominal capacity of 25 ml with fine 0,05 ml graduations, class AS accuracy, a straight stopcock and an NS glass key, all executed in brown glass that shields light-sensitive titrants. The amber-tinted body supports reliable work with photosensitive reagents while the straight stopcock and NS glass plug deliver controlled delivery and a secure seal. This model from manufacturer Witeg is conformity-certified (KB) and belongs to the established range of laboratory burettes used in chemistry, pharmaceutical quality control and teaching laboratories. Each unit has a net weight of 0,076 kg and is supplied in packs of 2 pieces, making it practical for multi-station labs or spare-part stocking. The combination of class AS tolerance, brown glass protection and straightforward stopcock design makes the instrument suitable for routine volumetric work where both precision and light protection are required. Robust construction ensures long service life under normal 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 NS glass key
- Material: Brown glass
- Technical Information Sheet:
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Questions about Burette class AS straight stopcock 25 ml
What is this article?
Burette class AS straight stopcock 25 ml is the article on this page. Luminix Health distributes Witeg 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.