Description
BLAUBRAND® volumetric flask, class A, is a precision measuring flask made from borosilicate glass 3.3 (Boro 3.3) with a nominal capacity of 20 ml. Blue graduations provide clear volume indication for accurate preparation and dilution work. The neck carries an NS 10/19 ground joint fitted with a polypropylene (PP) stopper for secure, chemically resistant closure during handling and storage of solutions. Conformity is indicated by the DE-M mark, and each flask is accompanied by an ISO individual certificate documenting its class A volumetric performance. Boro 3.3 glass combines high chemical resistance with good thermal stability, making the vessel suitable for analytical chemistry, quality control and routine laboratory volumetric procedures. Supplied as a single piece from manufacturer Brand, this BLAUBRAND® flask supports reproducible volume measurement where certified class A accuracy and a reliable PP stopper seal are required. The compact 20 ml format is practical for small-scale standard solutions, sample preparation and controlled dilutions in research and industrial laboratories.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product line: BLAUBRAND®
- Material: Borosilicate glass 3.3 (Boro 3.3)
- Accuracy class: Class A, DE-M
- Nominal volume: 20 ml
- EAN: 4033378328649
- Technical Information Sheet:
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Questions about Volumetric flask, Boro 3.3, BLAUBRAND,, class A, grad. in blue, with NS 10/19
What is this article?
Volumetric flask, Boro 3.3, BLAUBRAND,, class A, grad. in blue, with NS 10/19 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.