Description
Volumetric flask BLAUBRAND® Class A DE-M amber glass is a precision measuring vessel for preparing and diluting standard solutions to a defined volume. This 20 ml wide-neck flask is made from borosilicate glass 3.3 in a brown, light-protective finish and carries a ground joint NS 12/21 with matching polypropylene stopper. Class A accuracy with DE-M conformity marking supports reliable volumetric work in analytical chemistry, quality control, pharmaceutical and environmental laboratories. Each unit from manufacturer Brand is supplied with an ISO individual certificate confirming calibration conformity for high-grade laboratory glassware. The amber body helps protect light-sensitive media during preparation and short-term holding of working solutions, while the wide neck simplifies filling, mixing and cleaning. Durable Boro 3.3 construction combined with a secure PP closure makes the flask suitable for routine quantitative analysis, standard preparation and reproducible dilution workflows where Class A volumetric performance is required.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Nominal volume: 20 ml
- Glass type: Boro 3.3 amber glass
- Accuracy class: Class A, DE-M
- Joint: Wide neck NS 12/21
- EAN: 4033378495327
- Technical Information Sheet:
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Questions about Vol. flask BLAUBRAND class A DE-M amber, 20 ml, Boro 3.3, NS 12/21, PP-stopper
What is this article?
Vol. flask BLAUBRAND class A DE-M amber, 20 ml, Boro 3.3, NS 12/21, PP-stopper 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.