Description
Trapezoidal volumetric flask class A, 20 ml, NS 10/19 is a precision measuring vessel made from heat-resistant, durable borosilicate glass 3.3 in accordance with DIN EN ISO 1042. The trapezoidal body shape provides markedly higher standing stability than conventional designs and substantially reduces the risk of tipping on the laboratory bench. Each flask is calibrated to DIN/ISO class A and carries the DE-M conformity mark of the German weights and measures authority. Individual robotic calibration minimises deviations from the nominal volume. Conformity marking and batch number are printed directly on the flask body; the corresponding batch certificate can be downloaded from the manufacturer website. A diamond-ground meniscus ring mark ensures long-term durability and clear, reliable observation of the meniscus plane. Clear flasks feature blue enamel inscriptions that remain highly legible under laboratory conditions. Supplied with a leak-proof PP stopper for a secure seal, these class A trapezoidal flasks from manufacturer ISOLAB Laborgeräte are well suited for accurate volumetric preparations in analytical chemistry, quality control and research. Pack size is 2 pieces.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 20 ml
- Accuracy class: A (DIN/ISO)
- Material: Borosilicate glass 3.3
- Shape: Trapezoidal (TF)
- EAN: 4250362621276
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Questions about volumetric flask - trapezoidal - clear - class A - conformity batch certified -
What is this article?
volumetric flask - trapezoidal - clear - class A - conformity batch certified - is the article on this page. Luminix Health distributes ISOLAB for laboratory use. It sits in Volumetric flasks, inside Volumetric glassware, in Matériel de laboratoire.
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 Matériel de laboratoire.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.