Description
Trapezoidal volumetric flask 2 ml, class A, KB, with NS 7/16 ground joint and PE stopper is a precision measuring vessel for accurate liquid volume determination in the laboratory. Manufactured from borosilicate glass 3.3, the flask offers high chemical resistance and thermal stability for repeated analytical use. Class A tolerance combined with conformity certification (KB) supports reliable quantitative work. Diffico blue markings ensure clear meniscus reading, while the polyethylene stopper provides a secure seal on the NS 7/16 joint. The distinctive trapezoidal body improves bench stability and ease of swirling during solution preparation. Every flask carries a batch number and is accompanied by a batch certificate per original packaging, as supplied by manufacturer Witeg. With a net weight of 0,008 kg this compact 2 ml model is well suited to micro-scale dilutions, standard-solution preparation and titration workflows in chemical, pharmaceutical and quality-control laboratories. The robust glass construction withstands everyday handling while maintaining volumetric accuracy essential for reproducible results.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Capacity: 2 ml
- Accuracy class: A (KB)
- Ground joint: NS 7/16
- Stopper: PE
- Material: Borosilicate glass 3.3
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Questions about Trapezoidal volumetric flasks 2 ml, A, CC, ST 7/16
What is this article?
Trapezoidal volumetric flasks 2 ml, A, CC, ST 7/16 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.

