Beschrijving
Volumetric flask 5 ml class A KB with NS 7/16 joint and PE stopper in amber glass is intended for precise volumetric work in the laboratory. Produced from borosilicate glass 3.3, the amber flask shields photosensitive solutions while class A accuracy ensures reliable volume measurement. It features white Diffico markings, is conformity certified and delivered with a batch number together with a batch certificate per original packaging. The NS 7/16 ground joint is closed by a PE stopper for convenient sealing of prepared standards and samples. Supplied by manufacturer Witeg in packs of 10 pieces, these flasks are well suited to analytical chemistry, pharmaceutical preparations and quantitative procedures that require small-volume precision. The amber borosilicate material provides chemical resistance and light protection, while the certified class A performance and batch documentation support reproducible results in research, quality-control and routine laboratory applications.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Capacity: 5 ml
- Accuracy class: A
- Joint size: NS 7/16
- Stopper type: PE stopper
- Glass type: Amber borosilicate glass 3.3
- Technical Information Sheet:
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Questions about Volumetric flasks, 5 ml, A, CC, ST 7/16,
What is this article?
Volumetric flasks, 5 ml, A, CC, ST 7/16, 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.
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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.