BS ISO 1940-1:2003 Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1 : Specification and verification of balance tolerances
2016BS ISO 21940-11:2016 Mechanical vibration. Rotor balancing. Procedures and tolerances for rotors with rigid behaviour
1970BS ISO 1940-1:2003 Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1 : Specification and verification of balance tolerances
1987BS 6861-1:1987 Mechanical vibration - Balance quality requirements of rigid rotors - Method for determination of permissible residual unbalance