MEASURING AND TEST EQUIPMENT CALIBRATION Approved for Public Release 1
Definitions • • • Metrology Measuring & Test Equipment (M&TE) Calibration Measurement Standard Accuracy and Precision Calibration 2 Approved for Public Release
Calibration System • MIL-STD-45662 Military Standard – Calibration System Requirements. • ISO 10012 – Measurement Management Systems – Requirements For Measurement Processes And Measuring Equipment. • ANSI Z 540 – Calibration & Measurement & Test Equipment – General Requirements • Must Be An Integral Part Of The Quality System Calibration 3 Approved for Public Release
Suggested Practices • Written Description Of The Calibration System • Listing Of All Standards Used • Established Calibration Intervals • Mandatory Recall Of Inspection And Test Equipment • Measuring And Test Equipment Properly Identified To Reflect Calibration Status Calibration 4 Approved for Public Release
Suggested Practices (cont’d) • Maintain Historical Records Of Inspection And Test Equipment Calibration • Utilize Standards Whose Accuracy Is Certified As Traceable To U. S. Or International Standards • Written Calibration Procedures, Which Specify The Accuracy Of The Equipment Being Calibrated And The Accuracy Of The Standards Used Calibration 5 Approved for Public Release
Sample Calibration Record 2007 GAGE CALIBRATION RECORD CALIPERS CNC MICROMETERS Gage Asset No. Location C 12456 #1 Extruder C 12458 #1 Extruder C 12462 #2 Extruder N 11052 CNC house M 13465 M 13466 M 13467 M 13466 Press #1 Press #2 Press #3 Press #2 Operator Significant Number Dimensions 108 12 320 12 6 inch 12 inch 6 inch 0 to 12' 119 0 to. 385" 318 . 500 to . 750" 289 0 to. 385" . 500 to Calibration 318. 750" Cycle Source Date Due 6 mo Gage Block N-07 10/15/07 6 mo Gage Block N-07 10/17/07 6 mo Gage Block N-07 10/21/07 12 mo Outside J-07 5/22/07 9 mo Gage Block D-07 11/14/07 9 mo Gage Block D-07 11/22/07 9 mo Gage Block D-07 11/9/07 Gage Date Complete 6 Approved for Public 11/22/07 Release 9 mo Block D-07
Suggested Practices (cont’d) • Utilize Standards That Have A Higher Accuracy Level Than The Accuracy Requirements Of The Equipment Being Calibrated • Control Of Outside Calibration Sources • Environmental Controls • Out Of Tolerance Conditions • Control Of Inactive M&TE Calibration 7 Approved for Public Release
Suggested Practices (cont’d) • • • Use Of Tamper Proof Seals Storage And Calibration Facilities Customer Furnished M&TE Employee Owned M&TE Must Be Adequate To Permit Reliable Inspections Calibration 8 Approved for Public Release
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