These requirements shall apply particularly to recording electrocardiographs, electrocardiographs which are part of other medical electrical equipment for example exercise testing systems, are used as output units for ECG data base management systems or as output unit located at other places than the recording unit analysing electrocardiographs, systems, and computing devices and those parts of patient monitors or other specialised electrocardiographs that are capable of performing the functions of the analysing electrocardiographs.This particular standard complements IEC 60601-2-25 and its Amendment 1(1999).