Description
DURAN® volumetric flask, class B is a laboratory glass vessel designed for accurate preparation and dilution of solutions in volumetric analysis. With a nominal capacity of 20 ml and white graduation markings, it supports clear volume reading when filling to the calibration mark during routine analytical procedures. The product is supplied in a pack of 2 pc(s); each flask weighs 0,148 kg, giving a convenient pair for benches that run parallel dilutions or shared teaching sets. Class B accuracy is appropriate for everyday working standards, buffer preparation and sample make-up where class A tolerances are not mandatory. The 20 ml size balances reagent economy with comfortable handling for titration work-up, spectrophotometric dilutions and general wet-chemistry tasks. Belonging to the DURAN® range from manufacturer DWK Life Sciences, these flasks fit research, quality-control and educational environments that depend on reliable volumetric glassware. White graduations stay distinct on the glass body, aiding consistent results across repeated preparations alongside other volumetric flasks and vessels used in the same laboratory.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Brand: DURAN®
- Capacity: 20 ml
- Accuracy class: Class B
- Graduation: White
- Weight: 0,148 kg
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Questions about DURAN®-volumetric flask, class B, 20 ml, white graduation, 2 unit(s)
What is this article?
DURAN®-volumetric flask, class B, 20 ml, white graduation, 2 unit(s) 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.
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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.
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.