Description
Volumetric flask, conformity certified, class A, with NS poly stopper, Boro 3.3 is a precision laboratory vessel for accurate liquid-volume measurement and standard-solution preparation. This 100 ml flask is produced from borosilicate glass 3.3, giving the chemical resistance and thermal stability needed in daily analytical practice. It features a ground joint NS 14/23 and is supplied with a corresponding NS poly stopper for reliable closure during mixing and short-term holding of solutions. Brown inscription delivers durable, high-contrast marking of the nominal volume. The flask meets DIN EN ISO 1042 requirements and class A tolerances, making it suitable for quantitative analysis, titration workflows and preparation of calibration standards where tight volumetric accuracy is required. Conformity certification assists documentation in quality-managed laboratories. Available as a pack of 2 pieces from manufacturer Hecht, these volumetric flasks serve research, quality-control and teaching environments that rely on reproducible class A glassware. The combination of Boro 3.3 material, poly stopper and certified performance offers a dependable option for routine volumetric applications.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 100 ml
- Material: Boro 3.3
- Accuracy class: A
- Ground joint: NS 14/23
- Stopper type: NS poly stopper
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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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.