Description
BLAUBRAND® ETERNA volumetric flask, class A, USP, 50 ml is a precision measuring flask made from borosilicate glass 3.3 for accurate volumetric preparation of standards and analytical solutions. Class A accuracy, DE-M marking and an individual USP certificate support use in regulated pharmaceutical, chemical and quality-control environments where documented glassware performance is required. The neck carries a standard ground joint NS 12/21 and is fitted with a polypropylene (PP) stopper to ensure a reliable seal during dissolution, dilution and short-term holding of prepared media. Offered by manufacturer Brand within the BB-ETERNA range, this flask combines durable Boro 3.3 glass with clear volumetric definition suited to titrimetric work, assay dilution and routine calibration tasks. The 50 ml nominal volume is a practical intermediate size for working standards and mid-scale preparations. Delivered as one piece with the matching PP stopper, it slots easily into laboratory glassware inventories that specify USP class A volumetric flasks for compliant analytical workflows.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product line: BLAUBRAND® ETERNA
- Capacity: 50 ml
- Accuracy class: A (USP, DE-M)
- Material: Boro 3.3
- EAN: 4033378502940
- Technical Information Sheet:
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Questions about Volumetric flask, BB-ETERNA, A, USP, 50 ml, Boro 3.3, NS 12/21, PP-stopper
What is this article?
Volumetric flask, BB-ETERNA, A, USP, 50 ml, Boro 3.3, NS 12/21, PP-stopper is the article on this page. Luminix Health distributes Brand 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.