Description
Volumetric flask, trapezoidal, conformity certified class A with NS poly stopper is a precision laboratory vessel for accurate liquid volume preparation and measurement. Manufactured from borosilicate glass 3.3 with durable blue inscriptions, this 20 ml flask complies with DIN EN ISO 1042 and meets class A tolerance requirements for demanding analytical work. The trapezoidal body improves bench stability, while the NS 10/19 ground joint is fitted with a polyethylene stopper that seals the neck securely during mixing and short-term storage of solutions. From manufacturer Hecht, the flask is suited to preparing volumetric standard solutions, performing dilutions and supporting calibration routines in chemistry, biochemistry and quality-control laboratories. Chemical durability of Boro 3.3 glass permits routine use with many aqueous reagents and solvents under normal laboratory conditions. Conformity certification supports documentation within regulated workflows. Supplied in a practical pack of 2 pieces for convenient stocking across multiple workstations.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Material: Boro 3.3
- Capacity: 20 ml
- Joint size: NS 10/19
- Accuracy class: A
- Standard: DIN EN ISO 1042
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Questions about Volumetric flask, trapezoidal, clear, class A, blue graduation, with plastic
What is this article?
Volumetric flask, trapezoidal, clear, class A, blue graduation, with plastic 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.
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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.