Description
Volumetric flask class A KB 20 ml amber glass with hollow glass stopper NS 12/21 is a precision measuring flask produced from DURAN® borosilicate glass 3.3. It features a nominal volume of 20 ml and a tolerance of ±0,04 ml in accordance with DIN EN ISO 1042 class A specifications. The amber glass body protects light-sensitive contents, while the larger NS 12/21 ground joint and brown hollow glass stopper ensure easy handling and a secure closure. Overall height is 110 mm. Every flask is delivered with a conformity declaration to DIN 12600 and a dated batch identification for full documentation. Batch calibration certificates (free of charge), individual calibration certificates or DAkkS certificates can be supplied on request. Offered in packs of 2 pieces from manufacturer Hirschmann, these class A volumetric flasks are particularly suitable for accurate volumetric work, preparation of reference solutions and quantitative analytical procedures in chemical, pharmaceutical and quality-control laboratories that demand both high accuracy and protection from light.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Storage temperature: +5 - +40°C
- Nominal volume: 20 ml
- Tolerance: ±0,04 ml
- Accuracy class: A
- EAN: 4049338027866
- Technical Information Sheet:
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Questions about VOLUMET. FLASK A CC 20 ML, AMBER GLASS GL.ST. NS12/21
What is this article?
VOLUMET. FLASK A CC 20 ML, AMBER GLASS GL.ST. NS12/21 is the article on this page. Luminix Health distributes Hirschmann 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. Delivery across Europe, two to five days when in stock. 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.
