Description
Class AS burette 25 ml with PTFE spindle is a clear-glass precision instrument for accurate volumetric titration in analytical laboratories. It provides a 25 ml capacity with 0,05 ml graduations and meets class AS accuracy requirements for dependable volume delivery. The side valve stopcock incorporates a PTFE spindle that ensures smooth, chemically resistant operation and a tight seal without frequent greasing. Clear glass construction permits excellent visibility of the meniscus for precise endpoint readings. Produced by Witeg, the burette is supplied as a pack of 2 pieces with a net weight of 0,07 kg and is conformity-certified for traceable use. The PTFE spindle design supports reliable performance with a wide range of aqueous and organic reagents commonly encountered in titration work. Suitable for acid-base, redox and complexometric analyses in research, teaching and quality-control laboratories, this side-valve burette integrates readily into standard titration assemblies and maintains consistent dispensing characteristics under routine conditions.
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
- Stopcock: Side valve with PTFE spindle
- Material: Clear glass
- Technical Information Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Burettes, class-AS 25 ml:0,05 lat. valv
What is this article?
Burettes, class-AS 25 ml:0,05 lat. valv is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Burettes, inside Volumetric glassware, in Labware.
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 Volumetric glassware. The sub-category is Burettes. The catalogue is Labware.
Shelves beside this one are Volumetric flasks, Measuring cylinders, 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.