Beschrijving
Volumetric flask 50 ml, class A, KB, with NS 12/21 joint and hexagonal hollow stopper in amber glass according to USP delivers precise volume definition for demanding laboratory protocols. Fabricated from borosilicate glass 3.3, it withstands chemical exposure and temperature changes typical of analytical workflows. The amber glass protects photosensitive media, while white Diffico markings ensure unambiguous reading of the calibration mark. Each flask is conformity-certified (KB), identified by batch number and supplied with a batch certificate per original packaging. The NS hexagonal hollow stopper fits the ground joint securely and allows convenient handling. Net weight is 0,038 kg. Offered in packs of 10 pieces from manufacturer Witeg, these USP-grade class A volumetric flasks are intended for pharmaceutical, chemical and quality-assurance laboratories that require reliable, light-protected volumetric measurement with full batch traceability.
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: Hexagonal hollow stopper
- Material: Borosilicate glass 3.3, amber
Recent bekeken
Misschien vind je dit ook leuk
Browse related categories
Category
Sub-category
Catalogue
Brand
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 Maatkolven, inside Volumetrisch glaswerk, in Labmateriaal.
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 Volumetrisch glaswerk. The sub-category is Maatkolven. The catalogue is Labmateriaal.
Shelves beside this one are Maatcilinders, Buretten, Mengcilinders and Volumetrische accessoires & certificaten.
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.