Paint Thickness and Mil Gauge Calibration Log

Inspection log for refinish technicians to verify digital mil-thickness gauge calibration, instrument condition, and measurement readiness for coating thickness and corrosion documentation.

Inspection Details

• Inspection date and time recorded
• Inspector name or ID recorded
• Gauge identification number recorded
• Gauge model and serial number recorded
• Calibration standard or reference block identified

Instrument Condition and Setup

• Gauge powers on and displays no error codes
• Probe tip and body are clean, dry, and free of visible damage
• Battery level is adequate for the inspection
• Ambient conditions are suitable for measurement
  Verify the work area is free of excessive dust, moisture, vibration, or temperature extremes that could affect readings.
• Gauge zeroed or reset per manufacturer instructions before verification

Calibration Verification

• Calibration verification performed against known standard
• Measured reading is within acceptable tolerance of standard
  Record the measured thickness value from the gauge during verification.
• Reference standard nominal thickness
  Enter the nominal thickness of the calibration standard used for verification.
• Measured deviation from standard recorded
  Record the difference between the gauge reading and the nominal standard value.
• Gauge passes repeatability check across multiple readings

Measurement Readiness and Documentation

• Gauge is approved for use on coating thickness measurements
• Any out-of-calibration condition documented
• Corrective action taken or escalation recorded
• Next calibration due date recorded

Closeout and Sign-Off

• Inspection results reviewed and accepted
• Inspector signature
• Supervisor or QA review completed when required