Description
Volumetric flask class A, USP<31>, DURAN® is a precision clear-glass laboratory flask with a nominal capacity of 200 ml and standard taper joint NS 14/23. It is intended for accurate preparation and dilution of standard solutions and for volumetric analysis where class A performance is required. Each flask is supplied with a PE stopper and a USP certificate, supporting use in line with USP<31> expectations for volumetric glassware. Produced in DURAN® clear glass by manufacturer DWK Life Sciences, the vessel offers a transparent body that aids reliable meniscus reading when filling to the calibration mark. The NS 14/23 ground joint accepts the matching stopper for secure closure during mixing, standing and short-term holding of prepared solutions. This article is packed as 2 pc(s) with a weight of 0,272 kg, practical for stocking analytical benches and method set-ups. Class A designation together with the included USP certificate helps laboratories document glassware suitability for quantitative work. Suitable for routine volumetric tasks such as solution make-up, dilution series and general volumetric analysis with DURAN® class A flasks.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 200 ml
- Joint size: NS 14/23
- Accuracy class: Class A, USP<31>
- Material: DURAN® clear glass
- Stopper: PE stopper included
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Questions about Volumetric flasks DURAN® class A, USP<31>, 200 ml, 14/23
What is this article?
Volumetric flasks DURAN® class A, USP<31>, 200 ml, 14/23 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.
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.
How does ordering and shipping work?
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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.