Beschrijving
Pellet burette 25 ml class AS amber glass is a precision laboratory burette for larger-volume titrations requiring class AS accuracy. It provides 25 ml capacity with 0,05 ml graduations and conforms to ISO 385. Fabricated from amber glass, the burette protects photosensitive titrants from light during filling and delivery. The design has no intermediate stopcock; liquid control is achieved via a lateral stopcock fitted with an NS glass key (Glasküken). Supplied complete with a 2 l reservoir bottle and without a pressure ball, the unit is intended for continuous pellet-burette and Schilling-type rapid titration systems. This model from manufacturer Witeg is appropriate for analytical chemistry, quality control and teaching environments where reliable class AS performance and light protection are essential. Amber glass and the NS glass stopcock key offer robust chemical compatibility for common aqueous and selected organic media. Pack of two identical assemblies supports consistent multi-station laboratory setups.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 2 pc(s)
- Capacity: 25 ml
- Graduation: 0,05 ml
- Accuracy class: AS
- Material: Amber glass
- Stopcock: Lateral with NS glass key
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Questions about Automatic burettes, pellet, 25:0.05 ml,
What is this article?
Automatic burettes, pellet, 25:0.05 ml, is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Buretten, inside Volumetrisch glaswerk, in Labmateriaal.
A burette delivers a measured volume through a stopcock, which is how a titration is read. Class A and class AS state the tolerance. The stopcock, glass or PTFE, and the volume of the burette are the choices. A dirty bore changes the delivered volume.
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 Volumetrisch glaswerk. The sub-category is Buretten. The catalogue is Labmateriaal.
Shelves beside this one are Maatkolven, Maatcilinders, Mengcilinders and Volumetrische accessoires & certificaten.
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.