Description
DURAN® volumetric flask with ground joint NS 19/26 and nominal volume of 500 ml provides a reliable vessel for accurate preparation and measurement of solutions in analytical and research laboratories. Crafted from borosilicate glass 3.3, the flask delivers strong chemical resistance together with good thermal shock performance, making it suitable for routine heating, cooling and autoclave cycles. The pre-ground NS 19/26 joint accepts standard stoppers and adapters for secure, leak-resistant connections during mixing, storage or transfer steps. Supplied without print for a clean, unobstructed view of the meniscus and contents, the flask supports precise volumetric work such as standard-solution preparation, dilutions and quantitative assays. Packaged as 10 pc(s) and originating from manufacturer Duran/DWK Life Sciences, these flasks integrate easily into existing glassware sets used in chemistry, life-science and quality-control environments. The transparent borosilicate body allows clear observation of colour changes or phase separations, while the robust wall thickness withstands everyday handling. Ideal for aqueous and many organic media, the DURAN® design maintains dimensional stability and measurement reliability over repeated use, helping laboratories achieve consistent, reproducible results in both teaching and professional settings.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Brand: DURAN®
- Product type: Volumetric flask
- Material: Borosilicate glass 3.3
- Nominal volume: 500 ml
- Ground joint: NS 19/26
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Questions about DURAN® Volumetric flask, partially ground, NS 19/26, 500 ml, without print
What is this article?
DURAN® Volumetric flask, partially ground, NS 19/26, 500 ml, without print is the article on this page. Luminix Health distributes DWK Life Sciences 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.