Description
Class A volumetric flasks DURAN® with trapezoid body and standard ground joint are precision vessels for volumetric analysis. This 20 ml format supports accurate preparation of standard solutions and dilutions where class A tolerances are required. The trapezoid shape gives a compact, stable footprint on the bench, while the standard ground joint enables secure stoppering during mixing and short-term holding of prepared solutions. Offered as a pack of 2 pc(s) and listed at 0,076 kg, these flasks from manufacturer Hirschmann suit routine analytical chemistry, quality-control and teaching laboratories that rely on calibrated glassware for quantitative work. DURAN® construction is specified for this class A line, matching common laboratory practice for volumetric flasks used in titration setups, sample preparation and calibration routines. Clear indication of the nominal 20 ml capacity and class A rating helps maintain consistent volumetric procedures across series of measurements. They integrate readily with other volumetric glassware in research and routine environments focused on accurate liquid handling at intermediate working volumes.
This article belongs on Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Product type: Class A volumetric flasks DURAN®
- Capacity: 20 ml
- Design: Trapezoid body
- Joint: Standard ground joint
- Weight: 0,076 kg
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Questions about Volumetric flasks, cl. A, DURAN®, trapezoid, with stand. gr. joint, 20 ml
What is this article?
Volumetric flasks, cl. A, DURAN®, trapezoid, with stand. gr. joint, 20 ml is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Volumetric flasks, inside Volumetric glassware, in Matériel de laboratoire.
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 Matériel de laboratoire.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.