Description
Volumetric flask BLAUBRAND® class A is a precision laboratory flask manufactured from borosilicate glass 3.3 for dependable volumetric measurement. This 20 ml wide-neck version features ground joint NS 12/21 and is delivered with a glass stopper, allowing reliable sealing when preparing, equilibrating or briefly storing calibrated solutions. Class A accuracy together with DE-M marking and an ISO individual certificate make the flask suitable for quantitative analysis, standard preparation and controlled titration workflows. The Boro 3.3 construction combines chemical durability with the thermal stability needed in everyday laboratory practice. Wide-neck design simplifies charging of solids or viscous liquids, swirling and subsequent cleaning relative to conventional narrow-neck flasks. Supplied as one piece from manufacturer Brand, the BLAUBRAND® 20 ml flask serves pharmaceutical, environmental, food, academic and industrial laboratories that require traceable class A glassware for reproducible volume work. Clear geometry and a matching glass stopper support consistent handling from solution make-up through to final measurement.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Capacity: 20 ml
- Material: Boro 3.3
- Accuracy class: Class A, DE-M
- Neck and joint: Wide neck, NS 12/21
- EAN: 4033378483461
- Technical Information Sheet:
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Questions about Vol. flask BLAUBRAND class A DE-M, 20 ml W, Boro 3.3 NS 12/21 glass st.
What is this article?
Vol. flask BLAUBRAND class A DE-M, 20 ml W, Boro 3.3 NS 12/21 glass st. 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.
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.