Beschrijving
Interchangeable PTFE burette stopcocks with polypropylene tip are laboratory fittings for burettes that use a tube attachment. The PTFE stopcock body is combined with a PP tip and plugs onto burette tubes type 307 12, so the valve can be exchanged when a seal or tip needs renewal without discarding the full glassware assembly. This layout supports clean, chemically resistant flow control in volumetric titration and related analytical procedures. Supplied as a single-piece unit from manufacturer Hirschmann, the accessory suits routine maintenance of burette systems in research, quality control, and educational laboratories. The push-on interchangeable design shortens downtime during service. Net weight is 0,034 kg. PTFE and PP materials give broad chemical compatibility for aqueous and many organic media commonly handled in titration work. Choose this stopcock when a replaceable PTFE valve with polypropylene tip is specified for compatible tube-attachment burettes and dependable shut-off performance is required.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc(s)
- Storage temperature: +5 – +40 °C
- Stopcock material: PTFE
- Tip material: PP
- Design: Interchangeable, push-on
- EAN: 4049338018857
- Technical Information Sheet:
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Questions about BURET STOPCOCK EXCHANGEABLE,, PTFE W.PP TIP,FOR BURET W.STEM
What is this article?
BURET STOPCOCK EXCHANGEABLE,, PTFE W.PP TIP,FOR BURET W.STEM is the article on this page. Luminix Health distributes Hirschmann for laboratory use. It sits in Burettes, inside Volumetric glassware, 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 Volumetric glassware. The sub-category is Burettes. The catalogue is Labmateriaal.
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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.