ISO 7919-5:2005给出了在正常运行条件下，在水力发电厂和泵站的机器或机组轴承处或附近测量的轴振动评估标准的应用指南。这些指南以稳态运行振动和这些稳态振动值中可能发生的任何振幅变化为依据。 ISO 7919-5:2005适用于水力发电厂和抽水站中的机器或机组，其中液压机的速度为60 r/min至1800 r/min，壳牌公司- 或蹄型套筒轴承，主机功率至少为1MW。轴线的位置可以是垂直、水平或这两个方向之间的任意角度。 ISO 7919-5:2005涵盖的机组包括水轮机和发电机、作为电机运行的泵和电机、水泵水轮机和电机发电机，以及水轮机、泵和电机发电机（典型的泵储能机组），包括辅助设备（例如，位于轴系中的启动涡轮机或励磁机）。 ISO 7919-5:2005也适用于通过齿轮和/或径向挠性联轴器与发电机或电动机相连的涡轮机或泵。 不适用于火力发电厂或工业装置中的泵、带有滚动轴承的液压机或机组，或带有水润滑轴承的液压机。

ISO 7919-5:2005 gives guidelines for applying evaluation criteria for shaft vibration measured at, or close to, the bearings of machines or machine sets in hydraulic power generating and pumping plants under normal operating conditions. These guidelines are presented in terms of both steady-state running vibration and any amplitude changes that can occur in these steady vibration values. ISO 7919-5:2005 is applicable to machines or machine sets in hydraulic power generating and pumping plants where the hydraulic machines have speeds from 60 r/min to 1800 r/min, shell- or shoe-type sleeve bearings, and main engine power of at least 1 MW. The position of the shaft line can be vertical, horizontal or at an arbitrary angle between these two directions. Machine sets covered by ISO 7919-5:2005 include a combination of hydraulic turbines and generators, pumps and electrical machines operating as motors, pump-turbines and motor-generators, and hydraulic turbines, pumps and motor-generators (classic pump-storage machine sets), including auxiliary equipment (e.g. starting turbines or exciters lying in the shaft line). ISO 7919-5:2005 is also applicable to turbines or pumps connected to generators or electrical motors via gears and/or radially flexible couplings. It is not applicable to pumps in thermal power plants or industrial installations, hydraulic machines or machine sets having rolling element bearings, or hydraulic machines with water-lubricated bearings.