Intro

Paico® burettes are manufactured from chemically highly resistant borosilicate glass 3.3. They are primarily used for titration. The precise scale permits exact reading of the liquid quantity required for the titration. Calibration is based on the released volume (“Ex”) at a +20°C reference temperature. The fluid quantity released can be taken exactly from the scale, as the liquid adhesion to the glass is taken into account in the calibration. This only applies, however, if the specified waiting times for reading the scale are adhered to. Volume content tolerances for burettes conform to ISO accuracy limits. The Paico® Class B burettes’ accuracy limits are roughly one and a half times the Class A accuracy limit.
The tried-and-tested Paico® burettes are also available with PTFE keys. Work in the laboratory is simplified by the fact that unlike glass keys, these do not have to be lubricated.
By the specification of a class “A”, the German weights and measures regulations have, within the scope of the 15th Amendment Regulations, acknowledged that the great majority of volumetric measurements, especially in clinical laboratories, are carried out with water or dilute aqueous solutions; thus apparatus with considerably shorter draining times than previously required but with the same accuracy limits is now admitted by the calibration regulations.