Description
Volumetric flask, conformity certified, class A, with NS poly stopper, Boro 3.3 is a precision laboratory vessel for accurate preparation of standard solutions and volumetric dilutions. This 300 ml flask is made from borosilicate glass 3.3, chosen for low thermal expansion, strong chemical resistance and reliable performance under repeated thermal cycling. Class A accuracy combined with conformity certification to DIN EN ISO 1042 supports quantitative analytical work where tight volume tolerances are required. Durable blue inscriptions mark the calibration line clearly and remain legible after routine cleaning. The ground joint NS 14/23 accepts the matching NS poly stopper, providing a secure seal during mixing, inversion and short-term storage of prepared solutions. Supplied in packs of 2 pieces from manufacturer Hecht, these flasks are suited to pharmaceutical quality control, environmental analysis, food testing and teaching laboratories. Standardised dimensions and certified capacity make them practical for preparing calibration standards, titrants and reference solutions. The combination of Boro 3.3 glass, class A performance and a poly stopper delivers consistent service in everyday laboratory workflows that demand reproducible volumetric results.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Nominal volume: 300 ml
- Material: Boro 3.3
- Accuracy class: Class A
- Standard: DIN EN ISO 1042
- Ground joint: NS 14/23
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Flask, volumetric class 'A’, clear, blue graduation, with plastic stopper, DIN
What is this article?
Flask, volumetric class 'A’, clear, blue graduation, with plastic stopper, DIN is the article on this page. Luminix Health distributes Hecht 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.