Product Code:SAE ARP147 Title:Environmental Control Systems Terminology Issuing Committee:Ac-9 Aircraft Environmental Systems Committee Scope:This ARP provides the definition of terms commonly used in aircraft environmental control system (ECS) design and analysis. Many of the terms may be used as guidelines for establishing standard ECS nomenclature. Some general thermodynamic terms are included that are frequently used in ECS analysis, but this document is not meant to be an inclusive list of such terms.Product Code:SAE AMS2601 Title:Pressure Testing, Gaseous Media 10 Psi (Cancelled Feb 2004) Issuing Committee:Ams B Finishes Processes And Fluids Committee Scope: This specification provides requirements and procedures for gas-pressure leak testing of parts.