ISO/TS 11366:2011适用于用作润滑油的矿物油以及用于润滑运行中的蒸汽、燃气和联合循环涡轮机的控制流体。ISO/TS 11366:2011中考虑的润滑剂是在ISO 6743-5中分类并在ISO 8068中规定的润滑剂。 ISO/TS 11366:2011旨在 帮助电力设备操作员评估其设备中的油的状况，并保持油处于可用状态； 帮助用户了解油是如何变质的，并对使用中的油进行有意义的取样和测试。 ISO/TS 11366:2011还提供了关于为最大限度延长使用寿命而采取的纠正措施的说明。

ISO/TS 11366:2011 applies to mineral oils used as lubricating oils and to control fluids used to lubricate steam, gas and combined cycle turbines in service. The lubricants considered in ISO/TS 11366:2011 are those classified in ISO 6743-5 and specified in ISO 8068. ISO/TS 11366:2011 is intended to

• help power equipment operators evaluate the conditions of the oil in their equipment and maintain the oils in serviceable conditions;
• help users understand how the oils deteriorate and carry out a meaningful programme of sampling and testing of oils in use.

ISO/TS 11366:2011 also gives instructions with respect to the corrective actions that are taken to maximize service life.