Beschrijving
Volumetric flask, 50 ml, class A, KB, NS 12/21 with hexagonal hollow stopper in amber glass is a precision laboratory vessel designed for accurate volumetric work. Fabricated from borosilicate glass 3.3, it provides excellent chemical resistance and thermal stability for everyday analytical tasks. The conformity-certified flask is marked with white Diffico graduation for clear volume indication at the nominal capacity and incorporates an NS 12/21 joint closed by an NS hexagonal hollow stopper. Amber glass construction protects light-sensitive solutions during the preparation and temporary storage of standards. Every flask carries a batch number and is supplied with a batch certificate in the original packaging, ensuring traceability. These volumetric flasks from manufacturer Witeg are packed in units of 10 pieces and are suitable for preparing standard solutions, performing titrations and executing precise dilutions in chemical, pharmaceutical and quality-assurance laboratories. Class A accuracy satisfies the requirements of routine and regulated methods, while the net weight of 0,038 kg supports convenient handling and storage on the bench.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Volume: 50 ml
- Accuracy class: A
- Joint size: NS 12/21
- Stopper type: Hexagonal hollow stopper
- Material: Borosilicate glass 3.3
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Questions about Volumetric flasks, 50 ml, A, CC, ST 12/21,
What is this article?
Volumetric flasks, 50 ml, A, CC, ST 12/21, is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Maatkolven, inside Volumetrisch glaswerk, in Labmateriaal.
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 Volumetrisch glaswerk. The sub-category is Maatkolven. The catalogue is Labmateriaal.
Shelves beside this one are Maatcilinders, Buretten, Mengcilinders and Volumetrische accessoires & certificaten.
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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.