Description
Volumetric flask 5 ml, class A, conformity certified (KB), fitted with NS 10/19 ground joint and PE stopper is intended for high-precision small-volume measurements in the laboratory. Fabricated from borosilicate glass 3.3 and supplied in Diffico brown, the flask offers good chemical durability and thermal performance for everyday analytical tasks. Available from manufacturer Witeg, every flask is marked with a batch number and delivered with a batch certificate inside the original packaging for documented quality control. The brown glass helps shield light-sensitive solutions during preparation of standards and working reagents. Its 5 ml nominal capacity suits micro-scale dilutions, sample preparation and quantitative work where limited volumes are required. Packaged in units of 10 pieces, these class A instruments deliver the tight volumetric tolerances expected in modern laboratories. The polyethylene stopper ensures reliable closure and the compact NS 10/19 joint maintains compatibility with standard ground-glass accessories, supporting efficient workflows in research, quality assurance and teaching laboratories.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Volume: 5 ml
- Accuracy class: A
- Joint size: NS 10/19
- Stopper: PE
- Material: Borosilicate glass 3.3
- Technical Information Sheet:
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Questions about Volumetric flask, 5 ml, A, CC, ST 10/19, PE
What is this article?
Volumetric flask, 5 ml, A, CC, ST 10/19, 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.