Description
Volumetric flask TF class A, 4 ml with NS 7/16 joint is a precision measuring vessel made from heat-resistant, durable borosilicate glass 3.3 according to DIN EN ISO 1042. Its trapezoidal body shape delivers markedly higher stability and greatly reduces the risk of tipping during routine laboratory work. Calibrated to DIN/ISO class A and carrying the DE-M conformity mark of the German weights and measures authority, every flask is individually calibrated by automated robots to minimise deviations from the nominal volume. Conformity marking and batch number are printed directly on the body; the corresponding batch certificate can be downloaded from the manufacturer website. A diamond-ground meniscus ring mark ensures long-term durability and clear observation of the meniscus plane. Blue enamel graduations and inscriptions are applied to the clear glass body. Each flask is supplied with a leak-proof PE stopper that guarantees a secure, tight seal. This trapezoidal volumetric flask from manufacturer ISOLAB Laborgeräte is well suited for accurate volumetric preparation and analytical work. Pack size is 2 pieces.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 4 ml
- Accuracy class: A
- Material: Borosilicate glass 3.3
- Joint size: NS 7/16
- EAN: 4250362621245
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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.
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.

