Description
Burette DIN-AS PTFE spindle 50 ml is a precision glass volumetric instrument intended for accurate titration and quantitative dispensing in analytical laboratories. It offers a working capacity of 50 ml with clear 0,1 ml graduations, enabling fine volume control during endpoint determinations. Manufactured to DIN-AS requirements, the burette incorporates a lateral stopcock valve equipped with a PTFE spindle that provides smooth, chemically resistant operation and reliable sealing against common laboratory reagents. A Schellbach stripe runs along the scale to improve meniscus visibility and reading precision under varying lighting conditions. Supplied as a single unit with a net weight of 0,082 kg, this model from manufacturer Witeg is suited to routine wet-chemistry workflows, educational titration exercises and quality-control procedures that demand consistent volumetric performance. The combination of PTFE spindle durability and Schellbach contrast supports extended service life and reduced reading error in both teaching and research environments where DIN-compliant glassware is specified.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Capacity: 50 ml
- Graduation: 0,1 ml
- Standard: DIN-AS
- Stopcock: Lateral valve with PTFE spindle
- Reading aid: Schellbach stripe
- Technical Information Sheet:
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Questions about Burette DIN-AS PTFE-needle valve 50 ml
What is this article?
Burette DIN-AS PTFE-needle valve 50 ml 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.