MIL-STD-1839D

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                   MIL-STD-1839D, DEPARTMENT OF DEFENSE STANDARD PRACTICE: CALIBRATION AND MEASUREMENT REQUIREMENTS (12 MAY 2010)., This standard describes the requirement to provide a means for calibration and measurement traceability of all system, subsystem, and equipment. From this point on in this document, the word system will refer to system, subsystem, and equipment. This ensures system operational integrity and accuracy. It defines the requirement for establishing measurement traceability from actual system level measurements to the National Institute of Standards and Technology (NIST) or other approved measurement sources.