Description
Replacement screw cap, PFA, for volumetric flasks GL 25 provides a reliable sealing solution for laboratory volumetric flasks fitted with a GL 25 thread. Manufactured from perfluoroalkoxy alkane (PFA), this screw cap offers excellent chemical resistance and thermal stability, making it suitable for demanding analytical and preparative work with aggressive media. The inert fluoropolymer construction helps maintain sample integrity and supports repeated autoclaving or cleaning cycles without degradation of the sealing performance. Supplied as a single piece, the cap is intended as a direct replacement part for Brand volumetric flasks and compatible GL 25 neck finishes. Its precise thread geometry ensures a tight, leak-resistant closure that is easy to apply and remove by hand. Ideal for quality-control laboratories, research facilities and production environments where consistent flask sealing is essential, this PFA screw cap combines mechanical durability with broad chemical compatibility for everyday lab use.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Material: Perfluoroalkoxy alkane (PFA)
- Thread: GL 25
- EAN: 4033378424211
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Questions about Replacement screw cap, PFA, for volumetric flasks GL 25
What is this article?
Replacement screw cap, PFA, for volumetric flasks GL 25 is the article on this page. Luminix Health distributes Brand 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.