Description
Volumetric flask BLAUBRAND® ETERNA class A DE-M 20 ml wide-neck version is produced from borosilicate glass 3.3 for high chemical and thermal resistance. The brown flask is equipped with an NS 12/21 ground joint and a polypropylene stopper, combining easy filling through the wide neck with a reliable seal. It conforms to accuracy class A and DIN EN ISO 1042, bears DE-M marking and includes an ISO batch certificate that documents lot-specific quality. This wide-neck ETERNA flask from manufacturer Brand is intended for precise volumetric work such as preparation of standard solutions, dilutions and analytical procedures. The durable glass body maintains calibration integrity under normal laboratory conditions. Supplied in packs of 2 pieces, it meets the needs of research, quality-control and teaching laboratories requiring class-A performance together with convenient handling of powders or viscous media.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 20 ml
- Material: Borosilicate glass 3.3
- Accuracy class: A
- Neck type: Wide neck
- EAN: 4033378450425
- Technical Information Sheet:
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Questions about Vol. flask BLAUBRAND-ETERNA A DE-M, 20 ml W, Boro 3.3 NS 12/21, PP-stopper
What is this article?
Vol. flask BLAUBRAND-ETERNA A DE-M, 20 ml W, 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.