Description
Volumetric flask 25 ml is a high-precision measuring vessel intended for the exact preparation and dilution of solutions in chemical, pharmaceutical and analytical laboratories. This class A flask is produced from borosilicate glass 3.3 as brown glass, providing excellent resistance to chemicals and thermal shock while shielding contents from light. With a nominal volume of 25 ml it conforms to DIN EN ISO 1042 and carries white graduations plus one ring mark for unambiguous reading. The neck is fitted with a standard ground joint NS 10/19 and supplied with a polyethylene stopper that ensures a tight closure. The brown glass construction is particularly suitable for handling photosensitive reagents and samples that require protection from ambient light during storage and measurement. Packed in cartons of 10 pieces, the flasks originate from manufacturer Marienfeld and support demanding volumetric work such as titrations, standard solution preparation and quantitative analysis. Their robust construction and certified accuracy class make them a dependable choice for routine and research applications requiring reproducible results.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 25 ml
- Accuracy class: A
- Material: Borosilicate glass 3.3
- Ground joint: NS 10/19
- EAN: 4250317305978
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Questions about Volumetric flasks 25 ml,
What is this article?
Volumetric flasks 25 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.
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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.