Following are the required documents for an inspection;

☛ RFI (Request for inspection)

☛ P&ID for line verification

☛ PP for location (pipe plan)

☛ Wiring diagram for wiring details

☛ Data sheet for calibration and pressure test

☛ Hook-up etc. for remote tubing/air line

☛ QR for maintaining record

☛ WP, work procedure, to check each and every steps as per spec.

☛ QCO for issuing in case of little violation

☛ NCR, for issuing in case of major violation etc.