Description
Overflow volumetric flask 428 ml class B is laboratory glassware designed specifically for water investigation. The flask is cut at the content mark with a flat-ground cut surface and is supplied without a stopper, meeting class B accuracy requirements. Its 428 ml nominal volume makes it suitable for instruments from Hach and WTW in water-testing and environmental analysis workflows. The overflow construction assists reliable filling to the mark for volumetric sample preparation and related analytical steps. This overflow volumetric flask from manufacturer Witeg provides a practical solution for routine water-examination tasks where class B precision is sufficient. Flat-ground surfaces support clean handling and consistent performance. With a net weight of 0,106 kg the flask is lightweight and convenient for everyday bench use. It is intended for laboratories performing water quality assessment that require instrument-compatible overflow flasks for dilution work, standard preparation or similar volumetric procedures under class B tolerances.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Type: Overflow volumetric flask
- Volume: 428 ml
- Accuracy class: B
- Stopper: Without stopper
- Technical Information Sheet:
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Questions about Over-flow-flask 428 ml class B
What is this article?
Over-flow-flask 428 ml class B is the article on this page. Luminix Health distributes Witeg 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.
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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.