Description
Volumetric flask, PFA, class A with screw cap, PFA, 250 ml is a precision measuring vessel made from perfluoroalkoxy alkane (PFA) and certified to class A volumetric accuracy. With a nominal volume of 0,25 l it is well suited for preparing larger standard solutions, stock dilutions and reference mixtures in analytical, pharmaceutical and environmental laboratories. The PFA material offers exceptional resistance to virtually all laboratory chemicals, including concentrated acids, alkalis and organic solvents, while remaining translucent for clear observation of the liquid level. An integral PFA screw cap provides a secure, chemically inert seal that minimises evaporation and contamination risks during storage or transport. Gross weight is 0,111 kg, combining durability with convenient handling. This flask from manufacturer Vitlab is supplied in packs of two pieces and is ideal wherever glass volumetric ware is impractical due to breakage hazard or chemical incompatibility. The smooth, non-wetting PFA surface promotes complete drainage and easy cleaning, supporting high reproducibility in quantitative analytical procedures that demand class A precision.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Volumetric flask, PFA, ''class A'', 250 ml, with screw cap, GL 25
What is this article?
Volumetric flask, PFA, ''class A'', 250 ml, with screw cap, GL 25 is the article on this page. Luminix Health distributes Vitlab 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.

