BS ISO 1940-1:2003

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Pertinent aspects of the balancing
   4.1 General
   4.2 Representation of the unbalance
   4.3 Unbalance effects
   4.4 Reference planes for balance tolerances
   4.5 Correction planes
   4.6 Permissible residual unbalance
5 Similarity considerations
   5.1 General
   5.2 Permissible residual unbalance and rotor mass
   5.3 Permissible residual specific unbalance and service
        speed
6 Specification of balance tolerances
   6.1 General
   6.2 Balance quality grades G
   6.3 Experimental evaluation
   6.4 Methods based on special aims
   6.5 Methods based on established experience
 7 Allocation of permissible residual unbalance to tolerance
   planes
   7.1 Single plane
   7.2 Two planes
 8 Allocation of balance tolerances to correction planes
   8.1 General
   8.2 Single plane
   8.3 Two planes
 9 Assembled rotors
   9.1 General
   9.2 Balanced as a unit
   9.3 Balanced on component level
10 Verification of residual unbalance
   10.1 General
   10.2 Acceptance criteria
   10.3 Verification on a balancing machine
   10.4 Verification outside a balancing machine
Annex A (informative) Example of the specification of
         permissible residual unbalance based on balance quality
         grade G and allocation to the tolerance planes
 Annex B (informative) Specification of balance tolerances based
         on bearing force limits
 Annex C (informative) Specification of balance tolerances based
         on vibration limits
 Annex D (informative) Specification of balance tolerances based
         on established experience
 Annex E (informative) Rules for allocating balance tolerances
         from tolerance planes to correction planes
 Bibliography

Gives specifications for rotors in a constant (rigid) state. It specifies: a) balance tolerances, b) the necessary number of correction planes, and c) methods for verifying the residual unbalance.