Description
Volumetric flask Duran class A 250 ml with NS 14/23 poly stopper is a precision laboratory vessel manufactured from borosilicate glass 3.3. It offers a nominal volume of 0,25 l and accuracy class A, making it suitable for quantitative analytical work that demands tight volumetric tolerance. The flask is fitted with an NS 14/23 ground joint and is supplied complete with a polyethylene stopper for secure closure. Produced under the IDL range, the item has a gross weight of 0,126 kg and is delivered as a single piece. Borosilicate glass 3.3 provides the thermal and chemical resistance expected in routine titration, dilution and standard-solution preparation. The class A rating supports reproducible measurements in quality-control, research and teaching laboratories. The NS 14/23 joint ensures compatibility with matching stoppers and accessories already present in many glassware sets. This volumetric flask is intended for accurate liquid measurement and storage of prepared solutions under standard laboratory conditions.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Nominal volume: 0,25 l
- Accuracy class: A
- Material: borosilicate glass 3.3
- Joint size: NS 14/23
- Stopper: polyethylene
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Questions about Volumetric flask **IDL** Duran class A, 250 ml with NS 14/23 PE-stopper,
What is this article?
Volumetric flask **IDL** Duran class A, 250 ml with NS 14/23 PE-stopper, is the article on this page. Luminix Health distributes IDL Diverse Artikel 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.
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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.