Description
Volumetric flask, 25 ml, class A with PE stopper and NS 12/21 ground joint is manufactured from borosilicate glass 3.3 in Diffico blue. This conformity-certified flask is supplied with a batch number and an accompanying batch certificate per original packaging. The 25 ml class A vessel supports precise volumetric work and carries the stated joint size NS 12/21 for the PE stopper. Net weight is 0,024 kg. Pack size is 10 pc(s). These volumetric flasks from manufacturer Witeg arrive ready for laboratory use with full batch documentation included in each original pack. Diffico blue colouring identifies the glass body while the PE stopper provides closure at the NS 12/21 joint. Class A accuracy and conformity certification are integral to the specification. Every flask in the pack receives its batch number, and the certificate accompanies the original packaging as standard. Borosilicate glass 3.3 forms the construction material throughout. The combination of 25 ml volume, class A rating, NS 12/21 joint, PE stopper and Diffico blue finish defines this volumetric flask for routine analytical preparation.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Volume: 25 ml
- Accuracy class: A
- Joint size: NS 12/21
- Material: Borosilicate glass 3.3
- Stopper: PE
- Technical Information Sheet:
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Questions about Volumetric flask, 25 ml, A, CC, ST 12/21, PE
What is this article?
Volumetric flask, 25 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.
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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.