Description
Volumetric flask 25 ml, class A, with NS 10/19 joint and PE stopper in amber glass is designed for reliable volumetric measurement in laboratory applications. Fabricated from borosilicate glass 3.3 and finished with white Diffico graduation, each flask is conformity certified and delivered with a batch number plus a batch certificate in the original packaging. The amber glass body reduces light exposure for sensitive solutions, while the polyethylene stopper offers a practical, chemically resistant closure for mixing and temporary storage. These flasks from manufacturer Witeg suit preparation of standard solutions, dilutions and analytical samples where class A accuracy is specified. Borosilicate 3.3 provides the chemical and thermal performance expected of laboratory volumetric glassware. The 25 ml nominal volume with NS 10/19 joint matches common laboratory protocols. Supplied in packs of 10 pieces, the product supports efficient stocking for routine analytical, pharmaceutical and quality-control work requiring certified amber volumetric flasks with PE stoppers.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Accuracy class: A
- Joint size: NS 10/19
- Stopper: PE stopper
- Material: borosilicate glass 3.3
- Glass colour: amber, Diffico white graduated
- Technical Information Sheet:
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Questions about Volumetric flasks, 25 ml, A, CC, ST 10/19,
What is this article?
Volumetric flasks, 25 ml, A, CC, ST 10/19, 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.
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.