DURAN® Burette, brown, class AS, with glass plug, CoC, batch certificate, £ 173.26

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DURAN® Burette, amber, Class AS, with glass key, 50 ml The original DURAN® burettes are made of chemically highly resistant borosilicate glass 3.3. The precise scaling makes them particularly suitable for titrimetric purposes. The quantity of liquid required for titration, but unknown beforehand, can be read off very accurately after the reaction has been completed. The adjustment is carried out on expiry („Ex“) for + 20 °C reference temperature. This means that the quantities can be taken exactly according to the scaling, as 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 plugs. PTFE plugs, unlike glass plugs, do not need to be greased, which simplifies work in the laboratory. Burettes that have the accuracy class AS and a batch number are supplied with a batch certificate. This certificate documents the mean value resulting from the measurement of the given batch, the standard deviation and the date of issue. The batch certificates are also available online. The batch number consists of four digits. The first two numbers indicate the year of production, the following two the batch, e.g.: 18.01. Special features and benefits: UV protection due to amber glass Adjustment is on expiry („Ex“ ) at + 20 °C reference temperature With main point ring graduation The quantity of liquid required for titration, but unknown beforehand, can be read off very accurately after the reaction has been completed Waiting time 30 seconds The precise scaling makes them particularly suitable for titrimetric purposes Quantities can be taken exactly according to the scaling, as the adhesion of the liquid to the glass was taken into account during calibration PTFE plugs, unlike glass plugs, do not need to be greased, which simplifies work in the laboratory With straight NS stopcock Application: Titration of light-sensitive liquids, volumetry, dimensional analysis DURAN® Burette, amber, Class AS, with glass key, CoC, batch certificate

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