MEASURING AND TEST EQUIPMENT CALIBRATION

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MEASURING AND TEST EQUIPMENTCALIBRATION
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Definitions

• Metrology
• Measuring Test Equipment (MTE)
• Calibration
• Measurement Standard
• Accuracy and Precision

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Calibration System

• MIL-STD-45662 Military Standard Calibration
  System Requirements.
• ISO 10012 Measurement Management Systems
  Requirements For Measurement Processes And
  Measuring Equipment.
• ANSI Z540 Calibration Measurement Test
  Equipment General Requirements
• Must Be An Integral Part Of The Quality System

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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

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Suggested Practices (contd)

• 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

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Sample Calibration Record
Calibration
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Suggested Practices (contd)

• 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 MTE

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Suggested Practices (contd)

• Use Of Tamper Proof Seals
• Storage And Calibration Facilities
• Customer Furnished MTE
• Employee Owned MTE
• MTE Must Be Adequate To Permit Reliable
  Inspections

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