This International Standard — specifies test procedures for measuring the shifting times of electrically- or pneumatically-operated directional control valves and moving-part logic elements, — establishes a definition for shifting time, and — is intended to improve the application of pneumatic fluid power by providing users and manufacturers of pneumatic valves with a standardized test procedure for measuring the shifting time it defines.
GSO ISO 12238:2015 history
2015GSO ISO 12238:2015 Pneumatic fluid power -- Directional control valves -- Measurement of shifting time