Burettes are calibrated volumetric instruments with graduations and groundin stopcocks. They are used in laboratories for quantitative measurements of smaller liquid volumes in titration. Burettes are calibrated ”Ex” (to deliver): The imprinted volume corresponds to the delivered quantity of liquid. The Schellbach stripe facilitates reading precisely the meniscus of a liquid.

Classification:

• Class AS (fast delivery, circular graduation at main points). ”A” stands for highest accuracy, ”S” for fast delivery. The tolerances of class AS are half of the tolerances of class B according to DIN ISO standards.

• made of borosilicate glass 3.3
• in compliance with DIN EN ISO 385
• very good chemical resistance
• minimal thermal expansion
• high resistance to thermal shocks
• with automatic zero adjustment
• without intermediate stopcock
• blue graduation
• well legible numbers and graduations
• 2 pieces in a sturdy carton
• bottles and rubber bellows can be ordered separately

Class AS, with Schellbach stripe: