Description
Amber volumetric flask, class A, conformity certified, with NS poly stopper is a precision laboratory vessel in borosilicate glass 3.3 for accurate preparation of standard solutions. This 25 ml flask carries white inscription, meets DIN EN ISO 1042 and is fitted with ground joint sleeve NS 12/21. The brown glass body supports work with light-sensitive media while the class A rating delivers the tight volumetric tolerance required for quantitative analysis. An NS poly stopper provides a secure closure for mixing, dilution and temporary holding of calibrated solutions. Offered in a pack of 2 pc(s) from manufacturer Hecht, the flask suits routine analytical chemistry, quality control and teaching laboratories that rely on certified volumetric glassware. Clear white markings remain legible against the amber surface, aiding quick identification of nominal volume and joint size during daily use. Designed as a reusable Messkolben-type item, it integrates smoothly into workflows that demand reproducible volumes under DIN EN ISO 1042 dimensional and accuracy rules.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Volume: 25 ml
- Joint size: NS 12/21
- Material: Borosilicate glass 3.3
- Accuracy class: Class A
- Standard: DIN EN ISO 1042
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Questions about Flask, volumetric class 'A’, amber, white graduation, with plastic stopper, DIN
What is this article?
Flask, volumetric class 'A’, amber, white graduation, with plastic stopper, DIN is the article on this page. Luminix Health distributes Hecht 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.
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.