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The chief value of a well-kept measurement record is that

  • A.it removes the need for any calibration of the instrument
  • B.a result can be defended or re-examined years later
  • C.it satisfies a requirement without serving any purpose
  • D.it improves the accuracy of the measurement itself

Answer: B

When a component fails in service or a dispute arises, the record is what establishes whether the original acceptance was sound and what instrument and standard stood behind it. Nothing about the record changes the measurement, but a great deal depends on being able to reconstruct it.

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