BS ISO 8426:2008
Hydraulic fluid power - Positive displacement pumps and motors - Determination of derived capacity

Standard No.

BS ISO 8426:2008

Release Date

2008

Published By

British Standards Institution (BSI)

Latest

BS ISO 8426:2008

Replace

06/30128779 DC:2006 BS 7250:1989

Scope

This International Standard specifies the methods of determining the derived capacity of hydraulic fluid power positive displacement pumps and motors under steady-state conditions and at defined, continuous shaft rotational frequencies. Units can be tested as a positive displacement pump, with mechanical energy applied to the shaft and hydraulic energy obtained at the outlet fluid connection, or as a motor, with hydraulic energy supplied to the inlet fluid connection and mechanical energy obtained at the shaft. NOTE Measurement accuracy is divided into three classes A, B and C, which are explained in Annex A.

BS ISO 8426:2008 history

• 2008 BS ISO 8426:2008 Hydraulic fluid power - Positive displacement pumps and motors - Determination of derived capacity
• 1989 BS 7250:1989 Methods of determining the derived capacity of hydraulic fluid power positive displacement pumps and motors

BS ISO 8426:2008 Hydraulic fluid power - Positive displacement pumps and motors - Determination of derived capacity has been changed from BS 7250:1989 Methods of determining the derived capacity of hydraulic fluid power positive displacement pumps and motors.