Quick Answer:The Burettes with PTFE Key Stopcock Schellbach Stripe are graduated heavy-duty borosilicate glass burettes with a Schellbach stripe and a PTFE key stopcock, made in 5 ml, 10 ml, 25 ml, 50 ml and 100 ml sizes.
Last updated: 18 October 2026
Key Features
Schellbach stripe on the burette.
PTFE key stopcock.
Heavy-duty borosilicate glass.
Heat resistant and chemical resistant.
Graduated; five sizes from 5 ml to 100 ml.
Technical Specifications
Specification
Value
Marking
Schellbach stripe
Stopcock
PTFE key
Material
Heavy-duty borosilicate glass
Capacities
5 ml, 10 ml, 25 ml, 50 ml, 100 ml
Graduation
Graduated
How It Is Used
Used for titrations in the chemical laboratory, the burette is filled with titrant and emptied into the flask through the PTFE key stopcock. The Schellbach stripe makes the meniscus easier to see when the level is read against the graduations.
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