Glassware Calibration

Do we need to calibrate all the glassware (volumetric flask, pipette, buret, measuring cylinder) in the lab. Do the glassware calibration is included in GLP?


for the glass app.other than A class the calibration is included pls carry out the calibration asper IP. for A class app.the certificate provided by manufacturer is enough


As per USP we have to calibrate the Glasswares.whether volumetric glass or measuring cylinder.



USP general chapter <31> just mentioned volumetric flasks, transfer pipets, and burets to be calibrated. graduated cylinder is not considered as precision volumetric glassware.

btw, does anyone know where we could buy ‘to contain’ calibrated transfer pipets?