本规范可用于测试在初始蒸汽（通常为化石燃料机组）或主要在潮湿区域（通常为核燃料机组）内运行的汽轮机。本规范包含进行和报告蒸汽轮机试验的规则和程序，包括对预试验安排、拟用仪器、其应用和测量方法、试验技术和试验结果计算方法的强制性要求。可通过规范测试确定的性能参数包括:（a）热耗率，（b）发电机输出，（c）蒸汽流量，（d）蒸汽流量，（e）给水流量。它还包含确定潮湿区域内焓值所需的程序和技术，以及允许在核电厂辐射安全要求的限制范围内进行试验所需的修改。

This Code may be used for testing of steam turbines operating either with a significant amount of superheat in the initial steam (typically fossil-fueled units) or predominantly within the moisture region (typically nuclear- fueled units). This Code contains rules and procedures for the conduct and reporting of steam turbine testing, including mandatory requirements for pretest arrangements, instruments to be employed, their application and methods of measurement, testing techniques, and methods of calculation of test results. The performance parameters which may be determined from a Code test include: (a) heat rate, (b) generator output, (c) steam flow, (d) steam rate, (e) feedwater flow. It also contains procedures and techniques required to determine enthalpy values within the moisture region and modifications necessary to permit testing within the restrictions of radiological safety requirements in nuclear plants.