Cleaning Verification

The gathering of evidence to show that residues or cleaning agents have been reduced below the scientfically set maximum allowable carryover level

Eudralex defines cleaning verification as the gathering of evidence through chemical analysis after each batch/campaign to show that the residues of the previous product or cleaning agents have been reduced below the scientfically set maximum allowable carryover level. Others define it as a one-time sampling and testing to ensure that specified equipment has been properly cleaned following a specified cleaning event.