Quick Answer:The Burette, Class-B, with Glass Key is a Class B burette in heavy-duty borosilicate glass with a glass key stopcock and blue graduations, offered in 10 ml, 25 ml, 50 ml and 100 ml sizes.
Last updated: 18 October 2026
Key Features
Class B burette.
Glass key stopcock.
Blue graduations.
Heavy-duty borosilicate glass, heat and chemical resistant.
10, 25, 50 and 100 ml capacities.
Technical Specifications
Specification
Value
Class
Class B
Stopcock
Glass key
Graduations
Blue
Material
Heavy-duty borosilicate glass
Capacities
10 ml, 25 ml, 50 ml, 100 ml
How It Is Used
For a titration the burette is clamped vertically, filled with the standard solution and run into the reaction flask by turning the glass key. The volume used is the difference between the starting and final readings on the blue scale.
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