Description
Volumetric flasks, class A, DURAN®, 250 ml are precision glass vessels intended for accurate volumetric analysis and the preparation of standard solutions. Fabricated from transparent DURAN® glass, they include a PE-stopper and a ground joint 14/23 for dependable sealing while solutions are mixed and adjusted to the mark. With a nominal capacity of 250 ml and class A accuracy, the flasks support quantitative laboratory tasks that rely on tight volumetric tolerances, such as making up reference solutions, buffers or reagents. The clear body allows straightforward observation of the meniscus at the calibration mark. Delivered as 2 pc(s) weighing 0,260 kg in total, the items are available from manufacturer Hirschmann for routine use in analytical chemistry, quality control and teaching laboratories. Standardised joint geometry and the polyethylene stopper facilitate repeated handling, and the robust glass construction suits everyday bench work. These volumetric flasks belong to the familiar family of laboratory glassware used for volumetric vessels and controlled solution preparation across research and industrial settings.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Accuracy class: A
- Material: DURAN® transparent glass
- Stopper: PE-stopper
- Joint size: 14/23
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Questions about Volumetric flasks, cl. A, DURAN®, 250 ml, PE-stopper, joint 14/23, transp. glass
What is this article?
Volumetric flasks, cl. A, DURAN®, 250 ml, PE-stopper, joint 14/23, transp. glass is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Volumetric flasks, inside Volumetric glassware, in Labware.
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 Labware.
Shelves beside this one are Measuring cylinders, Burettes, Mixing cylinders and Volumetric accessories & certificates.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.