本国际标准规定了在离心（旋转）平衡机的不平衡测量站中，为将转子产生的机械危害降至最低而采用的外壳和其他保护措施的要求。这些危险与平衡机在各种转子和平衡条件下的操作有关。本国际标准定义了外壳和其他防护措施提供的不同防护等级，并描述了每种防护等级的适用范围。 本国际标准不包括调整转子质量分布的装置和转移转子的装置，即使它们与测量站结合使用。 本国际标准不包括特殊外壳功能，如降噪、减风阻或真空（以平衡速度旋转叶片转子可能需要这些功能）。

This International Standard specifies requirements for enclosures and other protective measures used to minimize mechanical hazards produced by the rotor in the unbalance measuring station of centrifugal (rotational) balancing machines. The hazards are associated with the operation of balancing machines under a variety of rotor and balancing conditions. This International Standard defines different classes of protection that enclosures and other protective measures provide and describes the limits of applicability for each class of protection. Devices for adjusting the mass distribution of a rotor and devices to transfer the rotor are not covered by this International Standard, even if they are combined with the measuring station. Special enclosure features, such as noise reduction, windage reduction or vacuum (which may be required to spin bladed rotors at balancing speed), are not covered by this International Standard.