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Operational Qualification (OQ): documented verification the products or units, as set up or modified, conduct as intended all through the expected working rangesAn API expiry or retest date must be based on an evaluation of data derived from steadiness research. Frequent follow is to work with a retest date, not an expiration day.In-process control

A reference electrode and a measuring electrode or sensor electrode, the two submerged in the identical Remedy, make up the combination electrode. The reference electrode must have an outlined steady voltage independent of the calculated Resolution to supply a defined pH benefit.Calibrate the pH meter: Calibration is an important stage to make cert