本文件涉及飞机安装环境控制系统（ECS）的地面和飞行试验， 图1 ECS为人、动物和设备提供了一个控制在舒适和安全的指定操作极限内的环境。这些限值包括:压力、温度、湿度、通风风速、通风速率、壁温、可听噪声、振动和环境成分（臭氧、污染物等）。ECS由供应、分配、回收和排出空气以维持所需环境的设备、控制装置和指示器组成。

This document deals with ground and flight test of airplane installed Environmental Control Systems (ECS), Figure 1 . The ECS provide an environment, controlled within specified operational limits of comfort and safety, for humans, animals, and equipment. These limits include the following: pressure, temperature, humidity, ventilation air velocity, ventilation rate, wall temperature, audible noise, vibration, and environment composition (ozone, contaminants, etc.). The ECS are composed of equipment, controls, and indicators that supply, distribute, recycle and exhaust air to maintain the desired environment.