by David Lohbeck
As an assessor, I am often asked the following question: “Is a calibration certificate issued from an ISO/IEC 17025-accredited laboratory always acceptable?” My answer: “No, it may not be.” Read on to find out why.
Calibration certificates can be confusing—especially if you aren’t a metrologist. Calibration certificates document the quality and accuracy of test equipment measurement results, so it’s important to understand the terminology and what the seemingly random numbers mean. More than a few test laboratories are receiving calibration certificates that are not accredited and, therefore, questionable.
