Description
Volumetric flask 50 ml, class A, KB, with NS 12/21 ground joint and PE stopper in amber glass according to USP is designed for precise volumetric work under pharmacopoeial requirements. Produced from borosilicate glass 3.3, the flask offers excellent chemical durability and thermal shock resistance. Amber glass shields light-sensitive solutions, and white Diffico graduations provide high-contrast volume indication. Conformity-certified (KB) and marked with a batch number, each original pack is accompanied by a batch certificate to support documentation needs. The polyethylene stopper seals the NS 12/21 joint securely during storage and handling. Net weight is 0,038 kg. Available in packs of 10 pieces from manufacturer Witeg, these USP-compliant class A volumetric flasks are suitable for pharmaceutical analysis, quality control and any laboratory application requiring accurate, light-protected volume measurement according to recognised standards.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Volume: 50 ml
- Accuracy class: A (KB), USP
- Joint size: NS 12/21
- Stopper: PE stopper
- Material: Borosilicate glass 3.3, amber
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Questions about Volumetric flasks, 50 ml, A, CC, ST 12/21,
What is this article?
Volumetric flasks, 50 ml, A, CC, ST 12/21, 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.