DURAN® Micro Burette, conformity, blue printing, straight PTFE stopcock, class AS, batch certificate, 10 ml

DURAN® micro burette with Schellbach strips and PTFE plug, class AS, 10 ml The original DURAN® burettes are made of the 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. Adjustment is made to run-off ("Ex") for + 20 °C reference temperature. This means that the quantities can be read 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 plugs. PTFE plugs, unlike glass plugs, do not need to be greased, which simplifies work in the laboratory. Burettes that have 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 digits indicate the year of production, the following two indicate the batch, e.g.: 18.01. Special features and benefits: Adjustment to drain ("Ex") at + 20 °C reference temperature With main point ring graduation With Schellbach strip With straight NS stopcock Waiting time 30 seconds The tolerances for the volume correspond to accuracy class AS Application: titration, volumetry, dimensional analysis