This part of IEC 60512 is applicable to electrical connectors, sockets, cable assemblies or interconnection systems.
This part of IEC 60512 describes a frequency and a time domain method to measure return loss as a function of frequency.
BS EN 60512-25-5:2004 history
2004BS EN 60512-25-5:2004 Connectors for electronic equipment - Tests and measurements - Test 25e - Return loss