Description
Volumetric flask class A USP 250 ml blue graduated with NS 14/23 ground joint is a precision measuring vessel produced from DURAN® borosilicate glass 3.3. It delivers a nominal volume of 250 ml at a tolerance of 0,12 ml, stands 220 mm high and is fitted with a polyethylene stopper for reliable closure. Clear blue graduation markings support accurate reading during preparation of standard solutions, quantitative analysis and sample dilution in analytical chemistry, pharmaceutical laboratories and quality-control environments. The USP-compliant class A design ensures the high volumetric accuracy required for certified work. A free USP batch calibration certificate is obtainable from manufacturer Hirschmann, while an individual USP certificate can be ordered separately. Excellent chemical resistance and thermal stability of borosilicate glass 3.3 make the flask suitable for routine and research applications. Supplied in packs of 2 pieces, this DURAN® volumetric flask meets the demands of modern laboratory workflows that require traceable, high-precision glassware.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Storage temperature: +5 - +40°C
- Material: Borosilicate glass 3.3
- Accuracy class: A (USP)
- Nominal volume: 250 ml
- EAN: 4049338009251
- Technical Information Sheet:
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Questions about VOLUMET. FLASK A USP 250 ML, POLYST. BLUE GRAD. NS14/23
What is this article?
VOLUMET. FLASK A USP 250 ML, POLYST. BLUE GRAD. NS14/23 is the article on this page. Luminix Health distributes Hirschmann 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.