Description
Automatic burette 25 ml clear with blue graduation, class B, with Schellbach strip is intended for precise volumetric titration. It is manufactured from pre-vacuum-calibrated borosilicate 3.3 tubes to ISO 385 and carries individual robotic calibration, a DE-M conformity mark and a batch number printed on the body for certificate traceability. A PTFE intermediate stopcock supports fast, accurate delivery, and a lateral PTFE needle-valve spindle stopcock that requires no lubrication is included. The Schellbach strip on the clear glass improves meniscus visibility, while nominal values and lettering are applied in blue enamel. This automatic burette from manufacturer ISOLAB Laborgeräte is supplied without bottle or bellows; those accessories are ordered separately. The 25 ml capacity and class B configuration suit routine analytical and quality-control titrations where clear reading and PTFE valving are preferred. Pack size is one piece for straightforward laboratory installation.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Capacity: 25 ml
- Material: Borosilicate glass 3.3
- Graduation: Blue enamel on clear glass
- Schellbach strip: With
- EAN: 4250362622303
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Questions about burette - automatic - clear - PTFE intermediate stopcock - class AS - conf.
What is this article?
burette - automatic - clear - PTFE intermediate stopcock - class AS - conf. is the article on this page. Luminix Health distributes ISOLAB 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.




