Expert Commentary for BS EN 55011:2016+A2:2021. Industrial, scientific and medical equipment. Radio-frequency disturbance characteristics. Limits and methods of measurement|Voltage measurement, Emission, Safety measures, Frequency measurement, Domestic, Field strength (electric), Noise (spurious signals), Test equipment, Arc-welding equipment, Cooking appliances, Classification systems, Bandwidths, Electric terminals, Laboratory equipment, Radiofrequencies, Antennas, Electrical equipment, Conformity, Electrical medical equipment, Statistical methods of analysis, Heaters, Electromagnetic radiation, Microwave devices, Radio disturbances, Low-voltage equipment, Electromagnetic compatibility, Industrial, Electrical wave measurement, Testing conditions