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ISO 4411:2008 Hydraulic fluid power - Valves - Determination of pressure differential/flow characteristics
standard by International Organization for Standardization, 10/01/2008
ISO 4411:2008 specifies methods for determining, under steady-state conditions, the pressure differential caused by the flow through any given path in a hydraulic fluid power valve. Requirements for test installations, procedures and presentation of results are specified.
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