These recommendations are written to cover the testing of environmental control equipment, functioning as a complete and installed system in civil aircraft for the purpose of:

1. a Demonstrating the safety of the installation and equipment.
2. b Demonstrating proper functioning of the installation and equipment.
3. c Demonstrating performance of the installation and equipment.
4. d Obtaining data for future design and to aid in the analysis of in-service performance of the system and equipment.