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ISO 8426:1988

Hydraulic fluid power -- Positive displacement pumps and motors -- Determination of derived capacity

General information
Withdrawn from 22.01.2008
Directives or regulations
None

Standard history

Status
Date
Type
Name
22.01.2008
Main
Specifies the methods for determining the derived capacity under steady-state conditions and at defined, continuously rotating shaft speeds. The unit may be tested as a pump, with mechanical energy applied to the shaft and hydraulic energy obtained at the fluid connections, or as a motor, with the hydraulic energy supplied to the fluid connections and mechanical energy obtained at the shaft. Accuracy of measurement is divided into three classes (A, B, and C) which are explained in annex A.
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