Beschrijving
Volumetric flask 250 ml is a certified precision flask designed for exact volumetric work in regulated analytical environments. Produced from brown borosilicate glass 3.3, it offers outstanding chemical durability and light shielding for sensitive reagents. The vessel meets accuracy class A requirements, carries white graduations with one ring mark, and complies with DIN EN ISO 1042. It features a standard ground joint NS 14/23 closed by a polyethylene stopper for secure containment. Each unit is conformity-certified and supplied with a batch certificate, providing documented traceability for quality systems. The 250 ml nominal volume suits preparation of calibration standards, titrants and reference solutions in pharmaceutical, environmental and research laboratories. Packaged in cartons of 10 pieces from manufacturer Marienfeld, these brown-glass flasks combine certified accuracy with robust everyday performance while protecting light-sensitive contents throughout storage and use.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Nominal volume: 0,25 l
- Accuracy class: A
- Joint size: NS 14/23
- Material: Borosilicate glass 3.3
- EAN: 4250317348753
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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 Labmateriaal.
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 Labmateriaal.
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.