This standard contains the German version of the European Standard EN IEC 55016-1-1:2019 and is identical to the fifth edition of the International Standard CISPR 16-1-1 (edition 2019-05). It specifies requirements for measuring apparatus for the measurement of radio-frequency conducted and radiated disturbances (disturbance voltages and currents and disturbance field strengths) in the frequency range 9 kHz to 18 GHz. Herefore quasipeak, peak and rms average measuring receivers and furthermore spectrum analyzers, scanner, audio-frequency voltmeters, disturbance analyzers for discontinuous disturbances and FFT based measuring receiver are considered. In relation to the previous edition of the standard DIN EN 55016-1-1 (VDE 0876-16-1-1) the standard was re-structured by placing the requirements that apply to all covered measuring receivers in a common clause 4. Furthermore new Annexes K and L were added.