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DWK Life Sciences DURAN™ Burette, Class AS, with Schellbach stripe and PTFE key
Their precise scaling makes them particularly suitable for titrimetric purposes. The amount of liquid required for titration, but previously unknown, can be read off very accurately after the reaction has been completed.
Marca: DWK Life Sciences 243303904
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Descrizione
The original DURAN™ burettes are made of highly chemically resistant borosilicate glass 3.3. Their precise scaling makes them particularly suitable for titrimetric purposes. The amount of liquid required for titration, but previously unknown, can be read off very accurately after the reaction has been completed. Adjustment is made to drain (Ex) for + 20°C reference temperature. This means that the quantities can be taken exactly according to the scale, since the adhesion of the liquid to the glass was taken into account during calibration. The tolerances for the volume correspond to the error limits of ISO and DIN. DURAN™ burettes are available with glass or PTFE keys. Unlike glass keys, PTFE keys do not have to be greased, which simplifies work in the laboratory.
- Calibration is based on the poured out volume (Ex) at a + 20°C reference temperature.
- With circular ring graduations
- The quantity of liquid required for titration, which is unknown beforehand, can be precisely read off once the reaction is complete.
- With Schellbach stripe
- Thanks to the precise scale they are ideal for titration.
- Fluid quantity released can be exactly taken from the scale, as the liquid adhesion to the glass is taken into account in the calibration.
- Unlike the glass keys, the PTFE keys need not be greased, which makes work in the laboratory easier.
- With straight standard ground stopcock
- 30 seconds waiting time
Specifica
| Autoclavable | |
| Borosilicate Glass (3.3), Polypropylene | |
| 2/Pk. |
| 100 mL | |
| Titration; Volumetric measurement; Measurement analysis | |
| ± 0.1 mL |