ISO 10816 is an international standard specifying the measurement and evaluation of mechanical vibration of rotating machinery by readings taken on non-rotating parts. It defines vibration severity zones that classify equipment condition from acceptable to unacceptable, guiding when intervention is required. It is widely used as the reference basis for condition monitoring and predictive maintenance of pumps, motors, fans, and turbines.
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- The standard groups machines by class and defines RMS velocity zones (A through D) marking the boundary between healthy operation and the need for corrective action. Continuous vibration sensors compared against these zones let maintenance teams schedule interventions before failure. It has been progressively superseded by the ISO 20816 series.