Description
Trapezoidal volumetric flask 5 ml Class A TC NS 10/19 with PE stopper is a compact precision tool for micro-scale volumetric preparations. Constructed from borosilicate glass 3.3, the trapezoidal design maximises stability despite the small footprint, reducing the risk of accidental spillage. Class A tolerance and to-contain (TC) calibration deliver the accuracy required for quantitative work. The NS 10/19 ground joint is fitted with a polyethylene stopper that provides a secure, inert closure. Diffico brown graduations remain sharply visible after repeated use and cleaning. Every unit is identified by batch number and accompanied by a batch certificate supplied with the original packaging, facilitating full lot traceability. Offered by manufacturer Witeg, this 5 ml flask is especially useful for preparing concentrated stock solutions, calibration standards and small-volume assays where sample or reagent economy is critical. The chemical and thermal resilience of borosilicate glass 3.3 ensures long service life across a broad spectrum of aqueous and organic laboratory applications.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Capacity: 5 ml
- Accuracy class: Class A
- Calibration: TC (to contain)
- Ground joint: NS 10/19
- Stopper material: PE
- Technical Information Sheet:
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Questions about Trapezoidal volumetric flasks 5 ml A CC ST 10/19
What is this article?
Trapezoidal volumetric flasks 5 ml A CC ST 10/19 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.