Description
DURAN® volumetric flask Class A without certificate of conformity with white print is a precision borosilicate glass vessel for accurate laboratory volumetry. With a nominal volume of 50 ml, the flask is manufactured from borosilicate glass 3.3 and conforms to ISO 1042. Accuracy class A offers the highest precision, with volume tolerances approximately half those of class B. It features a ground joint NS 12/21, a permanently fired white print, and a printed ring mark for improved visibility of the meniscus. An ergonomic polyethylene stopper is included for quick and secure opening and closing. The flask is calibrated to contain (In) at the reference temperature of +20 °C. Produced by manufacturer Duran/DWK Life Sciences, it is ideal for preparing and storing standard solutions, measuring liquid quantities, diluting solutions, mixing components, and performing volumetric analysis. Precise workmanship and scaling ensure maximum measurement accuracy and process stability. To maintain long-term volumetric integrity, these glass products should not be heated above +250 °C in drying ovens or sterilizers. Supplied as 1 piece.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Storage temperature: Standard
- Nominal volume: 50 ml
- Accuracy class: A
- Joint size: NS 12/21
- EAN: 4032051012547
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Questions about DURAN® Volumetric Flask, Class A, without certificate of conformity, white print
What is this article?
DURAN® Volumetric Flask, Class A, without certificate of conformity, white print 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.