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.
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.
- Class AS conformity certified (fast delivery, circular graduation at main points): Conformity means compliance with the German Calibration Regulations and the relevant standards. By imprinting the conformity symbol ”H” 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 (amber glass: dyed brown)
- in compliance with DIN EN ISO 385
- very good chemical resistance
- minimal thermal expansion
- high resistance to thermal shocks
- blue graduation
- well legible numbers and graduations
- 2 pieces in a sturdy carton
