本指南讨论并推荐了常规石油（矿物）介电油验收和使用的分析测试和评估程序。这些液体的最低标准、维护方法，以及这些方法的必要性和适用范围。本指南涵盖的矿物油用于变压器、电压调节器、开关设备、电抗器、断路器和负载分接开关。本指南中讨论的机油特性不包括工厂加注管路中的机油，也不包括安装在新设备中的再生机油。 如果使用这种油，其质量应得到设备制造商和用户的同意。

This guide discusses and recommends analytical test and evaluation procedures for acceptance and use of conventional petroleum (mineral) dielectric oils. Minimum standards, methods of maintenance for these fluids and levels at which these methods become necessary and included. The mineral oils covered in this guide are used in transformers, voltage regulators, switchgear, reactors, circuit breakers and load tap changers. The Characteristic of the oils discussed in this guide does not include oil that is in factory fill lines nor does this guide cover reclaimed oil installed in new equipment. The qualities of such oil, if used, should be agreed upon by the manufacturer and the user of equipment.