Description
Volumetric flask with glass stopper NS 12/21, clear, Class A, 50 ml is a precision laboratory vessel intended for accurate preparation and containment of defined liquid volumes. Fabricated from high-quality laboratory glass in a clear finish, the flask features a ground joint NS 12/21 with a corresponding glass stopper plus clear graduation to support confident meniscus reading at the mark. Class A accuracy suits volumetric tasks that require tight tolerance when making standard solutions, dilutions, or reference preparations at the 50 ml nominal volume.
This article is part of Volumetric flasks, in Volumetric glassware.
The flasks are offered in a convenient pack of 10 pieces, enabling laboratories to keep matched vessels on hand for series work or multi-sample routines. Clear glass allows straightforward observation of fill level and solution appearance during handling. These volumetric flasks from manufacturer Dinkelberg are appropriate for analytical chemistry, quality control, and instructional laboratories that rely on reproducible Class A glassware. The glass stopper closes the neck securely for mixing or short-term holding of prepared liquids, while the durable lab-glass body is designed for everyday bench use. Graduated clear Class A volumetric flasks remain fundamental equipment wherever precise volume measurement is required.
Key features
- Pack size: 10 pcs
- Product type: Volumetric flask with glass stopper
- Nominal volume: 50 ml
- Joint size: NS 12/21
- Accuracy class: Class A
- Material: Clear laboratory glass
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Questions about Flask, volumetric with Glass stopper NS 12/21, clear, Class A, 50ml, 10/PK
What is this article?
Flask, volumetric with Glass stopper NS 12/21, clear, Class A, 50ml, 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.
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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.