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U.S. Department of Health and Human Services

Radiation-Emitting Products

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A physicist utilizes a calibration laboratory after it has been notified by the National Institute of Standards and Technology (NIST) that it has failed its latest proficiency test. Can those calibrated instrument be used for MQSA evaluations?

Policy Guidance Help System logoNo. Instruments calibrated by a laboratory after the laboratory has been notified that it failed NIST’s proficiency test can not be used for MQSA evaluations.

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