You’ve done your qualifications, you’ve calibrated all of your equipment, now you’ve done your batches, and do you have to do immediate post-calibration of the instrumentation?

Q7 is not specific on this issue. From a very business oriented perspective, it depends on the
history that you have on that particular equipment and how long it will remain in calibration. If you
have any reason to believe that the calibration may have drifted, then you may want to recheck it,
but if you have a good history on the equipment and you know that your calibration and
preventative maintenance schedules are adequate, this may be satisfactory.