ISO 14839-3:2006规定了配备主动磁轴承（AMB）的旋转机械的稳定性要求。它指定了评估稳定裕度的特定指标，并描述了该指标的测量方法。 适用于额定功率大于15kW，不受尺寸或工作额定转速限制的工业旋转机械。它包括刚性电磁轴承转子和柔性电磁轴承转子。小尺寸转子，如涡轮分子泵、主轴等，未得到解决。 ISO 14839-3:2006涉及在内部和/或现场正常稳态运行期间测量的系统稳定性。 ISO 14839-3:2006未涉及通过临界转速时出现的共振。ISO 10814规定了临界转速下的共振调节。

ISO 14839-3:2006 establishes the stability requirements of rotating machinery equipped with active magnetic bearings (AMB). It specifies a particular index to evaluate the stability margin and delineates the measurement of this index. It is applicable to industrial rotating machines operating at nominal power greater than 15 kW, and not limited by size or operational rated speed. It covers both rigid AMB rotors and flexible AMB rotors. Small-scale rotors, such as turbo molecular pumps, spindles, etc., are not addressed. ISO 14839-3:2006 concerns the system stability measured during normal steady-state operation in-house and/or on-site. ISO 14839-3:2006 does not address resonance vibration appearing when passing critical speeds. The regulation of resonance vibration at critical speeds is established in ISO 10814.