Description
Volumetric flask 5 ml GL14 amber graduated is a class A measuring vessel equipped with a ring mark, content indication and ISO thread. Produced in brown DIFFICO glass to protect light-sensitive samples, it is supplied with a screw cap and PTFE-coated seal and is conformity certified. The compact 5 ml capacity supports precise preparation of small-volume standard solutions and quantitative dilutions in analytical chemistry. This flask from manufacturer Witeg combines amber colouration for photoprotection with a GL14 screw thread and PTFE-coated gasket that ensure a tight, chemically resistant closure. Class A accuracy and the clearly defined ring mark allow exact adjustment to the calibration line, while the conformity certificate documents metrological reliability. The design is particularly suitable for pharmaceutical, chemical and research laboratories that require certified volumetric glassware for low-volume work with photosensitive reagents. Robust construction and the secure screw-cap system facilitate safe handling and reproducible results in routine and controlled measuring applications.
This article is part of Volumetric flasks, in Volumetric glassware.
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Questions about Volumetric flask 5 ml GL14 brown graduated
What is this article?
Volumetric flask 5 ml GL14 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.

