Description
Volumetric flask with plastic stopper NS 19/26, amber, class B, 500 ml is a laboratory measuring flask for bringing solutions to a defined larger working volume. The amber (brown) glass body helps protect light-sensitive contents, while the plastic stopper fits the NS 19/26 ground joint to seal the flask during inversion and mixing. Class B rating makes this 500 ml Messkolben appropriate for routine volumetric applications in chemistry and related laboratory settings. Supplied in packs of 10 pieces, the flasks support multiple preparations or multi-user benches. They are produced by manufacturer Dinkelberg, belong to the laboratory materials category and originate from the Czech Republic. The clear 500 ml mark and standardised NS 19/26 joint allow straightforward use with matching stoppers and common lab glassware. Typical uses include preparation of stock solutions, buffers and diluted samples where amber glass, a plastic stopper and class B volumetric tolerance meet day-to-day analytical and teaching requirements.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pcs
- Product type: Volumetric flask
- Nominal volume: 500 ml
- Ground joint: NS 19/26
- Stopper: Plastic stopper
- Glass colour: Amber
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Questions about Flask, volumetric with plastic stopper NS 19/26, brown, Class B, 500ml, 10/PK
What is this article?
Flask, volumetric with plastic stopper NS 19/26, brown, Class B, 500ml, 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.

