Recently, I'm on the new role for GMP auditor. During the 1st audit, I engaged lots of specific control equipment which are already expired their calibration period.
The problem is there are lots of specific control equipment in my plant (dairy plant). But at least I think there must be a base for some critical specific equipment to calibrated. (for example: specific control equipment for CCP, QCP, pPRP)
Could you give some advice on what specific control equipment must be calibrated, HOW to determine their calib frequencies and besides CCP,QCP... is there any other needed category? Do you have any references?
*Note: On the way during the audit, I also engaged in some pressure gauge of NH3 tank and steam tank which are already expired on calib date. But when I require the supervisor to do the calib. He said it's not critical so just let them be!
I dont think its reasonable. Pls give me advice! Thank you!