This standard specifies methods of testing for rating flow and pressure characteristics of solenoid valves intended for continuous duty service using gas as a test fluid.This standard is not applicable to pneumatic fluid power valves, for which different methods of test and rating, presented in standards developed by NFPA and ISO/TC 131, are accepted and used throughout the fluid power industry."Valve Flow Coefficient," Cv/Kv, can be determined to establish a comparison of "flow rating" between valves as described in FCI Standard 68-2 - "Recommended Procedure in Rating Flow and Pressure Characteristics of Solenoid Valves for Liquid Service".