Description
Volumetric flask with glass stopper NS 7/16, clear, Class A, 5 ml is a small-capacity precision flask for accurate preparation of limited solution volumes. The clear body is fitted with a ground joint NS 7/16 and supplied with a glass stopper, giving a tight, chemically robust closure suited to careful volumetric work. Class A accuracy supports quantitative dilution, standard preparation and micro-scale analytical steps where the 5 ml mark must be read with confidence. Compact size makes the flask useful for scarce samples, concentrated standards and teaching exercises that emphasise precise meniscus adjustment. Clear walls aid visual control at the calibration line during filling and temperature equilibration. Delivered as a pack of 10 pieces from manufacturer Dinkelberg, with origin in the Czech Republic, the set is convenient for stocking multiple workstations or student places with matching Class A glassware. The NS 7/16 joint matches small ground-joint laboratory practice. Applications include solution standardisation, sample make-up and routine volumetric analysis in chemical, pharmaceutical, quality-control and educational laboratories that specify Class A flasks with glass stoppers.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 10 pc(s)
- Product type: Volumetric flask
- Capacity: 5 ml
- Stopper type: Glass stopper
- Joint size: NS 7/16
- Accuracy class: Class A
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Questions about Flask, volumetric with Glass stopper NS, 7/16, clear, Class A, 5ml, 10/PK
What is this article?
Flask, volumetric with Glass stopper NS, 7/16, clear, Class A, 5ml, 10/PK is the article on this page. Luminix Health distributes Dinkelberg 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.
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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.