Hydraulic fluid power -- Positive-displacement pumps, motors and integral transmissions -- Methods of testing and presenting basic steady state performance
This standard has been revised by ISO 4409:2019
ISO 4409:2007 specifies methods for determining the performance and efficiency of hydraulic fluid power positive displacement pumps, motors and integral transmissions. It applies to components having continuously rotating shafts.
ISO 4409:2007 specifies the requirements for test installations, test procedures under steady-state conditions and the presentation of test results.