Description
Volumetric flask with plastic stopper NS 14/23, clear, class A, 250 ml is a precision laboratory vessel intended for the accurate preparation, dilution and measurement of liquid volumes in analytical and general laboratory practice. The clear body allows easy observation of the meniscus at the calibration mark, while the NS 14/23 ground joint accepts a matching plastic stopper for secure closure during inversion and mixing. Class A designation indicates suitability for work requiring higher volumetric accuracy in routine quantitative procedures. Each unit has a nominal capacity of 250 ml, commonly used for stock solutions, standards and intermediate dilutions. Offered as a pack of 10 pieces, the set supports multi-user benches, teaching laboratories and inventory replenishment. These volumetric flasks from manufacturer Dinkelberg suit aqueous solution preparation and many standard workflows in chemistry, life sciences and quality control. The plastic stopper simplifies handling compared with all-glass stoppers and helps avoid glass-to-glass seizure. Clear construction aids visual inspection of contents. Originating from the Czech Republic, the flasks fit everyday volumetric routines in research, industrial and educational settings.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pcs
- Product type: Volumetric flask
- Nominal volume: 250 ml
- Joint size: NS 14/23
- Accuracy class: Class A
- Stopper: Plastic
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Questions about Flask, volumetric with plastic stopper NS 14/23, clear, Class A, 250ml, 10/PK
What is this article?
Flask, volumetric with plastic stopper NS 14/23, clear, Class A, 250ml, 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. 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.