Laboratory Instrument Tolerances: Manufacturer Vs. Process
By Michael Boetzkes, Quality Manager, Vaisala Canada Inc. Life Science Division
Using the instrument maker’s tolerance, there is often a higher risk of an “Out of Tolerance” appearing on a calibration certificate; this costs money. Consider the following scenario: You have just received back from calibration the set of temperature sensors used to monitor the warehouse. Most of the instruments have been shown to be within manufacturer published tolerances. A few of the instruments, though, are listed as out of tolerance. Now the fun starts!