Description
Volumetric flask, conformity certified, class A, with NS poly stopper, Boro 3.3 is designed for accurate liquid volume determination in the laboratory. With a nominal content of 250 ml, the flask follows DIN EN ISO 1042 and carries a brown inscription for clear identification of the calibration mark. An NS 14/23 ground joint sleeve is provided together with the corresponding NS poly stopper, allowing reliable sealing when solutions are prepared or held. The body is produced from borosilicate glass 3.3, a material specified for this class of volumetric glassware. Available from manufacturer Hecht, this class A flask supports the preparation of standard solutions, quantitative dilutions and other volumetric operations that demand certified accuracy. The brown lettering remains distinct against the glass surface, facilitating consistent meniscus reading during routine use. Pack size is 2 pc(s), offering a convenient quantity for bench-top work in analytical, research and quality-control settings. Conformity certification according to the referenced standard underlines the flask’s suitability for procedures that rely on class A volumetric performance.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 250 ml
- Material: Boro 3.3
- Accuracy class: Class A
- Stopper: NS poly stopper
- Joint size: NS 14/23
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Questions about Flask, volumetric class 'A’, clear, amber graduation, with plastic stopper, DIN
What is this article?
Flask, volumetric class 'A’, clear, amber graduation, with plastic stopper, DIN is the article on this page. Luminix Health distributes Hecht 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.