Burettes are calibrated volumetric instruments with graduations and ground-in 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.
Classification:
Class AS (fast delivery).
”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.
Class AS conformity certified (fast delivery)
Conformity means compliance with the German Calibration Regulations and the relevant standards.
By imprinting the conformity symbol ”DE-M” we confirm that the measuring device complies with these conditions. A batch certificate of conformity is supplied together with every box. On request individual certificates of conformity are available.
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
circular graduation at main points