Beschrijving
Volumetric flask 100 ml class A with batch certificate, NS 12/21 joint and hexagonal hollow stopper in amber glass according to USP is a precision laboratory measuring vessel manufactured from borosilicate glass 3.3. This USP amber glass flask is marked with white Diffico graduations and fitted with an NS hexagonal hollow stopper that seals the ground joint. Every flask carries a batch number and is delivered with a batch certificate inside each original packaging unit, confirming class A conformity and traceability. Available in packs of 10 pieces from manufacturer Witeg, the flasks are designed for accurate volumetric measurements, standard-solution preparation and quantitative dilutions. The amber glass body shields light-sensitive media while the borosilicate 3.3 construction offers chemical resistance and mechanical strength. These class A USP volumetric flasks with hexagonal hollow stoppers support reliable analytical, pharmaceutical and quality-control laboratory workflows that demand both high volumetric accuracy and documented batch conformity.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Capacity: 100 ml
- Accuracy class: A
- Joint size: NS 12/21
- Stopper type: Hexagonal hollow stopper
- Material: Borosilicate glass 3.3
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Questions about Volumetric flasks, 100 ml, A, CC, ST 12/21,
What is this article?
Volumetric flasks, 100 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.