Description
Volumetric flask 250 ml GL18 amber graduated is a Class A precision vessel for accurate volume measurement and preparation of standard solutions in the laboratory. It features a clear ring mark together with content indication on amber DIFFICO glass that helps protect light-sensitive media while preserving volumetric accuracy. The neck is finished with a GL18 ISO thread and is supplied complete with screw cap and PTFE-coated seal for a secure closure. Conformity-certified construction supports reliable analytical work in chemistry, pharmaceutical and research settings. Offered in packs of 10 pieces from manufacturer Witeg, the flask is well suited to routine volumetric procedures that demand Class A tolerance. Amber glass combined with the robust screw-cap system maintains sample integrity and simplifies repeated handling. Ideal for preparing, diluting and storing solutions that require both light protection and precise volume control during quantitative analysis and quality-control workflows.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Capacity: 250 ml
- Accuracy class: A
- Thread: GL18 ISO
- Colour: Amber DIFFICO
- Closure: Screw cap with PTFE-coated seal
- Technical Information Sheet:
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Questions about Volumetric flask 250 ml GL18 brown graduated
What is this article?
Volumetric flask 250 ml GL18 brown graduated 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.