The European edition of the differential mode disturbance test in the band from 2 kHz to 150 kHz is closely associated with the load management and communication services that European distribution system operators have used for decades: ripple control receivers, which receive a signal injected onto the network at a low frequency to switch tariffs and control loads, and the newer power line communication systems used for smart metering. The test therefore has two directions of interest, confirming that equipment is not disturbed by the voltages other equipment injects into the mains and confirming that a receiver is not upset by the disturbances present there. The European text reproduces the international waveform, amplitude, modulation and series coupling arrangement, and it carries the foreword and annex linking it to the directive. It is applied mainly through the generic industrial immunity standard.