Description
DURAN® volumetric flask Class B, 200 ml, is a precision laboratory vessel manufactured from borosilicate glass 3.3 for accurate volume measurement and preparation of solutions. White printed markings and a distinct ring mark improve readability, while the flask is adjusted to contain (“In”) at +20 °C and conforms to ISO 1042. An NS 14/23 ground joint with ergonomic polyethylene stopper allows quick and secure handling during routine laboratory use. Class B accuracy delivers practical tolerances approximately twice those of Class A, supporting reliable everyday volumetry with high process stability through precise forming and scaling. Offered by manufacturer Duran/DWK Life Sciences, this flask is well suited to preparing and storing standard solutions, measuring liquid volumes, diluting solutions, mixing multiple components, and volumetric analysis. To maintain calibration integrity and service life, the glassware should not be heated above +250 °C in drying cabinets or sterilizers. Supplied in a pack of 2 pc(s).
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Nominal volume: 200 ml
- Accuracy class: B
- Material: Borosilicate glass 3.3
- Joint size: NS 14/23
- EAN: 4032051306776
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Questions about DURAN® Volumetric Flask, Class B, white print, with ergonomic polyethylene stopp
What is this article?
DURAN® Volumetric Flask, Class B, white print, with ergonomic polyethylene stopp 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?
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.