scope:

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.

Purpose:

This document defines recommended tests and test procedures for airplane installed ECS. The purpose of these tests is to:

a. verify system pressure integrity (leakage),

b. verify integration and compatibility of ECS with other airplane systems, and

c. determine overall system performance in conditions representative of those which may be encountered during operations.