Description
Volumetric flask with glass stopper NS 10/19, clear, Class A, 25 ml is a precision laboratory vessel for preparing and containing accurately defined liquid volumes. Made from high-quality laboratory glass in clear execution, it combines a ground joint NS 10/19 with a matching glass stopper and clear graduation for reliable meniscus reading at the calibration mark. The Class A designation supports volumetric work that demands tight dimensional tolerance for standard solutions and dilutions.
This article is part of Volumetric flasks, in Volumetric glassware.
Each unit is supplied as part of a 10-piece pack, giving laboratories a practical stock of matched flasks for parallel preparations or routine analytical series. Clear glass construction aids visual inspection of contents and filling level during use. These volumetric flasks from manufacturer Dinkelberg suit general analytical chemistry, quality-control workflows, and teaching laboratories where reproducible 25 ml volumes are required. The glass stopper provides a secure closure for temporary storage or mixing of prepared solutions, while the robust lab-glass body withstands typical handling in everyday bench work. Graduated clear Class A flasks of this type remain a core tool wherever accurate volumetric measurement is essential.
Key features
- Pack size: 10 pcs
- Product type: Volumetric flask with glass stopper
- Nominal volume: 25 ml
- Joint size: NS 10/19
- Accuracy class: Class A
- Material: Clear laboratory glass
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Questions about Flask, volumetric with Glass stopper NS 10/19, clear, Class A, 25ml, 10/PK
What is this article?
Flask, volumetric with Glass stopper NS 10/19, clear, Class A, 25ml, 10/PK is the article on this page. Luminix Health distributes Dinkelberg 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.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. 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.
