Description
Volumetric flask BLAUBRAND® class A is a precision measuring vessel made from borosilicate glass 3.3 for accurate preparation of standard solutions and volumetric work in analytical laboratories. This 25 ml wide-neck flask carries blue graduations and is designed to class A tolerance with DE-M marking, supporting reliable volume determination under routine and quality-controlled conditions. The ground joint NS 12/21 accepts the supplied polypropylene stopper, giving a secure closure while remaining easy to handle during filling, mixing and storage of aqueous and many organic media. Manufactured by Brand, the flask is supplied with an ISO individual certificate that documents conformity for traceable laboratory documentation. Borosilicate 3.3 offers high chemical resistance and thermal stability suited to everyday wet-chemistry workflows, calibration solutions and sample preparation. The wide-neck geometry facilitates pipetting, rinsing and cleaning. Ideal for pharmaceutical, environmental, food and general analytical laboratories that require class A volumetric glassware with documented performance and a practical PP stopper interface.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product type: Volumetric flask BLAUBRAND® class A
- Material: Borosilicate glass 3.3
- Capacity: 25 ml, wide neck
- Graduation: Blue graduated, DE-M
- EAN: 4033378328908
- Technical Information Sheet:
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Questions about Volumetric flask, Boro 3.3, BLAUBRAND,, grad. in blue, class A, with NS 12/21
What is this article?
Volumetric flask, Boro 3.3, BLAUBRAND,, grad. in blue, class A, with NS 12/21 is the article on this page. Luminix Health distributes Brand 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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.