DWK Life Sciences DURAN™ Burette, Class A, with Schellbach stripe and glass 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.

Product Code	Brand	Capacity (Metric)
15261929	DWK Life Sciences 243293306	25 mL
30215946	DWK Life Sciences 243293906	100 mL

Description

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
• The volume content tolerances conform to accuracy class AS
• waiting time: 30 seconds

Specifications

• Autoclavable: Autoclavable
• Material: Borosilicate Glass (3.3), PTFE
• For Use With (Application): Titration; Volumetric measurement; Measurement analysis
• Includes: 2/Pk.