Quote:
Originally Posted by Tcoat
That is how we calibrate our noise dosimeter calibration devices. Once a year we send the main calibration device to be calibrated by a calibrated calibrator. Not sure how they calibrate the calibrator that calibrates our calibrator so we can calibrate our calibrators.
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That calibrator is calibrated to one that is calibrated to the one at Her Majesty's Ministry of something-or-other.