reg 1
In this Schedule— “contact current (I C )” is the current created when a person comes into contact with an object in an electromagnetic field, expressed in ampères (A); “external electric field strength (E)” is a vector quantity corresponding to the force exerted on a charged particle in the environment, irrespective of its motion in space, expressed in volts per metre (Vm -1 ); “internal electric field strength (E)” is a vector quantity corresponding to the force exerted on a charged particle inside the human body, irrespective of its motion in space, expressed in volts per metre (Vm -1 ); “limb current (I L )” is the current induced in the limbs of a person exposed to electromagnetic fields in the frequency range from 10 MHz to 110 MHz, expressed in ampères (A); “magnetic flux density (B)” is a vector quantity resulting in a force that acts on moving charges, expressed in tesla (T); “power density (S)” is the radiant power incident perpendicular to a surface, divided by the area of the surface, expressed in watts per square metre (Wm -2 ); “specific energy absorption ( SA )” is the energy absorbed per unit mass of biological tissue, expressed in joules per kilogram (Jkg -1 ); “specific energy absorption rate (SAR)” is the rate at which energy is absorbed per unit mass of body tissue, expressed in watts per kilogram (Wkg -1 ).