Description
The BLAUBRAND® ETERNA Class A volumetric flask is a precision laboratory measuring vessel made from borosilicate glass 3.3 for accurate preparation of standard solutions. This 50 ml wide-neck model features amber graduation markings and a ground joint NS 14/23, supplied with a polypropylene stopper for dependable closure during dilution and mixing steps. Class A tolerances and DE-M conformity marking ensure reliable volumetric performance in analytical and quality-control environments. Each flask is delivered with an ISO individual certificate that records its calibration. The wide-neck design simplifies filling, sample transfer and cleaning while the Boro 3.3 construction offers high chemical resistance and thermal stability for routine laboratory service. Clear amber graduations support confident meniscus reading under typical bench lighting. This BLAUBRAND® ETERNA wide-neck flask from manufacturer Brand is suited to quantitative chemistry, research and QC workflows that demand certified Class A accuracy at the 50 ml volume level in a single-piece pack.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Nominal volume: 50 ml
- Material: Borosilicate glass 3.3
- Accuracy class: Class A, DE-M
- Design: Wide neck, NS 14/23 with PP stopper
- EAN: 4033378328441
- Technical Information Sheet:
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Questions about Volumetric flask, Boro 3.3, BLAUBRAND-, ETERNA, class A, grad. in amber, with
What is this article?
Volumetric flask, Boro 3.3, BLAUBRAND-, ETERNA, class A, grad. in amber, with 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.