Description
Volumetric flask 250 ml is a precision laboratory vessel for accurate preparation and measurement of standard solutions. Made from clear borosilicate glass 3.3, it carries a single ring mark and blue graduation for reliable volume reading. The flask is fitted with a standard ground joint NS 14/23 and matching poly stopper that provides a secure closure during mixing and storage. Classified Accuracy class A and manufactured in accordance with DIN EN ISO 1042, the vessel meets the tight volumetric tolerances demanded by quantitative analytical work. This volumetric flask from manufacturer Marienfeld combines chemical resistance, thermal stability and optical clarity, making it suitable for titrations, dilution series and reagent preparation in chemistry, pharmaceutical and quality-control laboratories. The clear-glass body allows unobstructed observation of contents while the robust borosilicate construction withstands typical laboratory handling. Packed in cartons of 10 pieces, the flasks support efficient stocking and routine use wherever Class A volumetric accuracy is required.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 250 ml
- Accuracy class: A
- Material: Borosilicate glass 3.3
- Joint size: NS 14/23
- EAN: 4250317305824
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Questions about Volumetric flasks 250 ml,
What is this article?
Volumetric flasks 250 ml, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Volumetric flasks, inside Volumetric glassware, in Matériel de laboratoire.
A volumetric flask is calibrated to contain one volume at a reference temperature, with a single mark on a narrow neck. Class A is the tight tolerance. It is not a storage bottle and it is not for heating. The stopper is part of the calibrated article.
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 Volumetric flasks. The catalogue is Matériel de laboratoire.
Shelves beside this one are Measuring cylinders, Burettes, 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.