Description
Volumetric flask 10 ml, class A with batch certificate is a precision laboratory vessel for accurate preparation and measurement of standard solutions. Manufactured from borosilicate glass 3.3, it features an NS 12,5/21 ground joint and is fitted with a PE stopper. Diffico blue graduation markings give clear, durable readability during routine analytical work. Each flask from manufacturer Witeg is supplied with a batch number and a conformity batch certificate enclosed per original packaging, supporting traceable volumetric control. Class A accuracy meets the tight volume tolerances required in analytical chemistry, pharmaceutical quality control and research laboratories. The borosilicate glass 3.3 construction provides strong chemical resistance and thermal stability for repeated use. With a net weight of 0,02 kg, the compact flask integrates easily into standard racks and workflows. Offered in packs of 10 pieces, this volumetric flask enables efficient multi-sample preparation while maintaining documented calibration status for regulated and ISO-aligned laboratory environments.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Accuracy class: A
- Joint size: NS 12,5/21
- Material: Borosilicate glass 3.3
- Stopper: PE stopper
- Marking colour: Diffico blue
- Technical Information Sheet:
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Questions about Volumetric flask, 10 ml, A, CC, ST 12/21, PE
What is this article?
Volumetric flask, 10 ml, A, CC, ST 12/21, 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.