NA 001

DIN/VDI Standards Committee Acoustics, Noise Control and Vibration Engineering


Mechanical vibration - Rotor balancing - Part 21: Description and evaluation of balancing machines; Supplement 1: Statistical quality capability parameters for assessment of the unbalance measuring process


This document specifies procedures and assessment criteria for the capability of unbalance measurement procedures; whereby the vector character of the variable "rotor unbalance" is considered with consistent behaviour in one or two planes. The capability statistics described in this document specify whether – or to what extent – a measuring device is suitable for inspecting specified balance tolerance values. Here, depending on the task, standard rotors or production rotors are used.



Planned document number

DIN ISO 21940-21 Beiblatt 1

Project number


Responsible national committee

NA 001-03-06 AA - Balancing and balancing machines 


Felix Schwäricke

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