Description
DURAN® volumetric flask, Class A, with CoC and batch certificate and blue print is a precision borosilicate vessel engineered for reliable volumetric measurements. This clear 500 ml flask is made from borosilicate glass 3.3 and features a ground joint NS 19/26. It complies with ISO 1042 and is rated accuracy class A, delivering the highest precision with volume tolerances roughly half those of class B. The permanently enamelled blue print incorporates a ring mark for enhanced readability, and the flask is calibrated to contain (“In”) at +20 °C. Delivery includes an ergonomic polyethylene stopper that permits fast, secure opening and closing. Class A flasks provided with a batch number are accompanied by a batch certificate stating the mean value of the measured batch, the standard deviation and the date of issue; certificates remain accessible online. The four-digit batch identifier shows the year of manufacture followed by the batch sequence. Typical laboratory applications cover preparation and storage of standard solutions, determination of liquid volumes, dilution steps, mixing of several components and volumetric titration work. These flasks from manufacturer Duran/DWK Life Sciences should not be heated above +250 °C in drying cabinets or sterilizers in order to avoid any risk of volume change and to ensure long service life. Pack size is 1 piece.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Nominal volume: 500 ml
- Accuracy class: A
- Material: Borosilicate glass 3.3
- Joint size: NS 19/26
- EAN: 4032051306493
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Questions about DURAN® Volumetric Flask, Class A, with CoC and batch certificate, blue print
What is this article?
DURAN® Volumetric Flask, Class A, with CoC and batch certificate, blue 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.