Description
Volumetric flask 25 ml narrow neck PP is a polypropylene laboratory flask intended for the accurate preparation of fixed volumes of liquid. The vessel features a narrow neck (Enghals), a permanent ring mark for the 25 ml calibration point and an NS 12/21 stopper that seals the opening during mixing and storage. Standing 121 mm high and weighing only 0,012 kg net, the flask is light and convenient for everyday bench work. Polypropylene construction offers resistance to many aqueous reagents and a lower breakage risk than glass, while food-contact suitability extends use to laboratories handling food-related samples. Packs contain 6 pieces, practical for teaching sets and multi-user facilities. This volumetric flask from manufacturer Witeg supports laboratory operations such as preparing calibration standards, performing dilutions and making up buffer solutions. The narrow-neck geometry promotes a stable meniscus at the ring mark, aiding consistent volume reading. It provides a plastic alternative wherever glass volumetric ware is less desirable due to weight or fragility in routine analytical and quality-control workflows.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 6 pc(s)
- Capacity: 25 ml
- Material: PP
- Neck type: Narrow neck
- Stopper: NS 12/21
- Height: 121 mm
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Questions about Volumetric flasks 25ml narrow neck PP
What is this article?
Volumetric flasks 25ml narrow neck PP is the article on this page. Luminix Health distributes Witeg 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.