本标准规定了总温测量仪器的基本最低安全性能要求，主要用于涡轮驱动的亚音速运输机，其运行可能会使仪器受到本报告中规定的环境条件的影响。本标准涵盖了三种基本类型的总温度测量仪器，用于确定由于飞机在空气中的运动而产生的空气绝热加热产生的总温度。

This standard establishes essential minimum safe performance requirements for total temperature measuring instruments, primarily for use with turbine-powered subsonic transport aircraft, the operation of which may subject the instruments to the environmental conditions specified in this report. This standard covers three basic types of total-temperature-measuring instruments used as a means of determining the total temperature developed by adiabatic heating of the air due to motion of the aircraft through the air.