Description
Volumetric flask 500 ml class A KB with NS 19/26 hexagonal hollow stopper in amber glass is a precision measuring vessel produced from borosilicate glass 3.3. Conformity-certified and marked Diffico white, every flask carries a batch number and is accompanied by a batch certificate supplied with each original packaging. The amber glass body shields light-sensitive media while class A tolerances support accurate volumetric work calibrated to contain. The NS 19/26 ground joint accepts the hexagonal hollow stopper for reliable closure during preparation and storage of solutions. Net weight is 0,051 kg. These flasks from manufacturer Witeg are delivered in packs of 10 pieces, retaining full batch traceability for laboratory documentation. Borosilicate glass 3.3 provides the chemical resistance and thermal stability expected in routine analytical and preparative procedures. The combination of amber protection, class A accuracy and certified batch control makes the flask suitable for quantitative tasks that require both light protection and reproducible volume determination under standard laboratory conditions.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Capacity: 500 ml
- Accuracy class: A
- Ground joint: NS 19/26
- Stopper: Hexagonal hollow stopper
- Material: Borosilicate glass 3.3
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Questions about Volumetric flasks, 500 ml, A, CC, ST 19/26,
What is this article?
Volumetric flasks, 500 ml, A, CC, ST 19/26, is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Fioles jaugées, inside Verrerie volumétrique, 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 Verrerie volumétrique. The sub-category is Fioles jaugées. The catalogue is Matériel de laboratoire.
Shelves beside this one are Éprouvettes graduées, Burettes, Éprouvettes de mélange and Accessoires volumétriques & certificats.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.