Description
Volumetric pipettes 25 ml, class AS are precision single-mark glass instruments designed for accurate delivery of fixed liquid volumes in analytical, biochemical and quality-control laboratories. Each pipette is adjusted to “Ex” (to deliver), complies with DIN EN ISO 648 and carries one ring mark together with brown graduations, a colour code and printed tolerance indication for straightforward identification and reliable reading. Manufactured from soda-lime glass, they provide optical clarity and the mechanical strength needed for routine laboratory handling of aqueous solutions and reagents. Supplied in cartons of 20 pieces from manufacturer Marienfeld, these class AS pipettes support reproducible volumetric work at the nominal volume of 25 ml. The single-ring format minimises parallax and reading error compared with graduated pipettes and works seamlessly with conventional pipette controllers and bulbs. Typical uses include titration setups, preparation of standard solutions, sample dilution and educational demonstrations requiring class AS accuracy. Their clear markings and robust construction make them a practical choice for research, industrial and teaching laboratories performing everyday volumetric analysis.
This article is part of Volumetric pipettes, in Pipettes & pipette tips.
Key features
- Pack size: 20 pc(s)
- Accuracy class: AS
- Nominal volume: 25 ml
- Material: Soda-lime glass
- Calibration: Adjusted to Ex, DIN EN ISO 648
- EAN: 4250317304865
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Questions about Volumetric pipettes 25 ml, class AS,
What is this article?
Volumetric pipettes 25 ml, class AS, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Volumetric pipettes, inside Pipettes & pipette tips, in Lab consumables.
A volumetric pipette has a single mark and a bulb, and it delivers one volume with a tighter tolerance than a graduated pipette. It is for preparing standards. It is not for reagents that attack glass, and it is not a blow-out pipette unless it is marked as one.
A pipette moves a measured volume. A volumetric pipette delivers one line. A graduated pipette delivers along a scale. A Pasteur pipette is an uncalibrated transfer. A piston pipette uses a tip, and the tip has to seal on that pipette. A filter tip adds a barrier so aerosol from the sample does not reach the piston. Serological pipettes are the long graduated tubes used with a controller. The volume and the fit are the specification. Piston pipettes are treated under ISO laboratory apparatus. In-vitro work also meets ISO in vitro diagnostic systems.
Which category should I open next?
The category is Pipettes & pipette tips. The sub-category is Volumetric pipettes. The catalogue is Lab consumables.
Shelves beside this one are Pipette tips, Filter tips, Pipetting accessories, Graduated pipettes, Pasteur pipettes, Pipette controllers & fillers, Reagent reservoirs, Dispenser & repeater tips and Serological pipettes.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.