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U.S. Department of Health and Human Services

Radiation-Emitting Products

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If a calibration laboratory that failed its last test has carried out corrective actions that it believes will now allow it to pass, will any of the air kerma instrument calibrations provided by the laboratory during the re-testing process be acceptable toward meeting the MQSA requirement?

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No. Once a proficiency test has been failed and until the calibration laboratory has passed a new test, the laboratory’s calibrations lack sufficient validity to provide assurance that the air kerma instrument meets the requirement.

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