Description
Volumetric flask 500 ml class A with NS 19/26 ground joint and PE stopper is a precision measuring vessel made from borosilicate glass 3.3 in Diffico blue. This conformity-certified (KB) flask provides class A volumetric accuracy for quantitative preparation, dilution and standardisation of solutions. The Diffico blue colouration distinguishes the glassware and supports handling of light-sensitive media in analytical workflows. Each flask is identified by a batch number and delivered with a batch certificate per original packaging from manufacturer Witeg. The NS 19/26 joint accepts standard ground-glass accessories while the polyethylene stopper ensures a reliable seal for calibrated volumes. With a nominal capacity of 500 ml and a net weight of 0,16 kg, the flask fits seamlessly into routine laboratory practice in quality control, research and teaching environments. Supplied in packs of 10 pieces, these certified blue volumetric flasks enable reproducible volumetric measurements wherever class A glassware and documented batch traceability are essential.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Accuracy class: A
- Joint size: NS 19/26
- Material: Borosilicate glass 3.3
- Stopper: PE stopper
- Colour: Diffico blue
- Technical Information Sheet:
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Questions about Volumetric flask, 500 ml, A, CC, ST 19/26, PE
What is this article?
Volumetric flask, 500 ml, A, CC, ST 19/26, PE 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.