Description
Volumetric flasks with stopper, class B are crystal-clear polymethylpentene (PMP) vessels intended for precise preparation of defined solution volumes in the laboratory. This model provides a nominal capacity of 50 ml and carries a standard ground joint of size 12/21 fitted with a polypropylene (PP) stopper. Delivered as a pack of 2 pieces from manufacturer Vitlab, these class B flasks support everyday volumetric analysis, dilution series and standard preparation in research, QC and teaching environments. The PMP body combines glass-like clarity with a light, durable form suited to frequent handling. Class B tolerance is appropriate for general analytical work that does not demand class A precision. The PP stopper on the ground joint helps maintain a dependable seal while solutions are mixed or held. Transparent walls assist accurate meniscus reading at the mark. The 50 ml size balances working volume and bench footprint, making the flasks a practical choice for mid-scale volumetric tasks alongside other laboratory plasticware.
This article is part of Volumetric flasks, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Volume: 50 ml
- Accuracy class: B
- Material: PMP
- Stopper material: PP
- Ground joint: 12/21
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Questions about Volumetric flasks class B crystal clear, 50 ml, 12/21
What is this article?
Volumetric flasks class B crystal clear, 50 ml, 12/21 is the article on this page. Luminix Health distributes Vitlab 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
