Description
DURAN® volumetric flask Class A amber with individual certificate, CoC and white print is a high-precision borosilicate glass 3.3 vessel for accurate volumetric work. This 500 ml flask carries external amber colouring that delivers reliable UV protection while leaving the inner glass surface with unchanged DURAN® chemical resistance and thermal properties. Class A tolerances according to ISO 1042 guarantee the highest accuracy; the flask is calibrated to contain (In) at the +20 °C reference temperature and bears a durable white enamel ring mark. Each unit is permanently laser-etched with a unique serial number on the base; the matching individual certificate records the measured volume, measurement uncertainty and date of issue. An ergonomic polyethylene stopper allows rapid, secure opening and closing. From manufacturer Duran/DWK Life Sciences, the flask is ideal for preparing and storing standard solutions, diluting liquids, mixing components, volumetric analysis and the safe handling or transport of light-sensitive materials. The white print remains permanently legible and the external amber coating resists chemical attack. To preserve volumetric accuracy, the glassware should not be heated above +250 °C in drying cabinets or sterilizers. Supplied as a pack of 2 pieces.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Nominal volume: 500 ml
- Accuracy class: A
- Material: Borosilicate glass 3.3
- Joint size: NS 19/26
- EAN: 4032051308015
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Questions about DURAN® Volumetric Flask, Class A, amber, individual certificate, CoC, white prin
What is this article?
DURAN® Volumetric Flask, Class A, amber, individual certificate, CoC, white prin 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.