Description
DURAN® volumetric flask, amber, Class A, 1000 ml with UKAS certificate and polyethylene stopper is precision laboratory glassware for accurate volumetric work. Manufactured from borosilicate glass 3.3, it conforms to ISO 1042 and delivers Class A volume tolerances. Each flask is individually tested and supplied with a calibration certificate that meets ISO 17025 requirements and is accredited by the United Kingdom Accreditation Service (UKAS). The external amber coating provides effective UV protection together with long durability and good chemical resistance of the colouring; because the brown colour is applied only externally, the interior retains unchanged DURAN® glass properties. The flask is adjusted to contain (In) at the +20 °C reference temperature and carries a precisely etched ring mark for reliable meniscus reading. An ergonomic polyethylene stopper enables quick, secure opening and closing, while the white printed markings offer high chemical resistance. Typical applications include preparation and storage of standard solutions, precise measurement of liquid volumes, dilution of solutions, mixing of components, titrimetric analysis and general volumetry. This flask from manufacturer Duran/DWK Life Sciences is supplied as a single piece.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Nominal volume: 1 l
- Colour: Amber
- Accuracy class: A
- Material: Borosilicate glass 3.3
- EAN: 4032051340794
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Questions about DURAN® Volumetric Flask, amber, with UKAS certificate, with polyethylene stopper
What is this article?
DURAN® Volumetric Flask, amber, with UKAS certificate, with polyethylene stopper 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.

