Description
Volumetric flask with plastic stopper NS 12/21, clear, class A, 50 ml is a precision laboratory flask intended for accurate preparation and measurement of defined liquid volumes. Its clear construction enables clear meniscus observation, and the plastic stopper closes the standard ground joint NS 12/21 to keep contents secure during inversion, mixing and short-term holding of solutions. Class A accuracy suits quantitative analytical procedures that demand controlled volumetric tolerance. With a nominal capacity of 50 ml, the flask supports common dilution, standard-solution and calibration workflows in chemical, pharmaceutical and educational laboratories. Supplied in packs of 10 pieces, the set helps equip multiple workstations with matching glassware. These clear class A volumetric flasks with plastic stoppers are from manufacturer Dinkelberg and originate from the Czech Republic. The NS 12/21 joint, plastic stopper and 50 ml rating together provide a practical format for everyday volumetric tasks where reproducible liquid volume definition is required.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pcs
- Product type: Volumetric flask
- Capacity: 50 ml
- Joint size: NS 12/21
- Stopper: Plastic
- Appearance: Clear
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Questions about Flask, volumetric with plastic stopper NS 12/21, clear, Class A, 50ml, 10/PK
What is this article?
Flask, volumetric with plastic 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.