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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.
A Schellbach stripe (optional) facilitates reading precisely the meniscus of a liquid.
- 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.
- 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
- circular graduation at main points
- blue graduated
- well legible numbers and graduations
- 2 pieces in a sturdy carton
- bottles and rubber bellows can be ordered separately
With NS glass plug in delivery stopcock
| Cat. No. clear glass |
Cat. No. Schellbach |
Capacity | Tolerance | Unit |
|---|---|---|---|---|
| 2522001 | 2523001 | 10 : 0,02 ml | ± 0,02 ml | 2 |
| 2522011 | 2523011 | 25 : 0,05 ml | ± 0,03 ml | 2 |
| 2522031 | 2523031 | 50 : 0,1 ml | ± 0,05 ml | 2 |
With NS PTFE plug in delivery stopcock
| Cat. No. clear glass |
Cat. No. Schellbach |
Capacity | Tolerance | Unit |
|---|---|---|---|---|
| 2522101 | 2523101 | 10 : 0.02 ml | ± 0,02 ml | 2 |
| 2522111 | 2523111 | 25 : 0,05 ml | ± 0,03 ml | 2 |
| 2522131 | 2523131 | 50 : 0,1 ml | ± 0,05 ml | 2 |