Pneumatic fluid power. Directional control valves. Measurement of shifting time1 Scope 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.

Design and general requirements

This requires a better selection of equipment by users and thus better design of this equipment by manufacturers in large quantities

PD IEC/PAS 62958 mentions the methods to test conditions

and defence fields

Sample reduction is used to create sub-samples that are contamination-free and can be used for accurate analysis

Converting between a C pointer variable and a corresponding ASN

ISO 22389 is an International Standard that discusses timber structures

as specified in IEC 60793‑2‑50

BS EN 60684-3-145 TO 147 give the requirements for three types of non-heat-shrinkable sleeving

LC-FLD analysis

vertically mounted copper cylinders for the storage of hot water where the water is either heated indirectly by primary (boiler) water circulating in an integral primary heater and/or directly via either an external heat source or an electric immersion heater fitted inside the cylinder

including that of sealing materials