There is also an ESD test standard IS010605 for automotive system products, IS010605 ESD also simulates the electrostatic discharge of the human body, ISO10605 got the same model as IEC61000-4-2 ESD including a charging capacitor and a discharging resistor. The difference is that IS010605 ESD has more options than IEC61000-4-2 does. For example, the model charging capacitance of people inside the car is 150 pF, and the model of people outside the car is 330 pF. The model discharge resistance of discharge through metal is 330 Ω, and the discharge resistance through skin is 2000 Ω. In the part of testing the discharge head, there are three kinds. Air test head and Contact test head the same with IEC61000-4-2 ESD, there is also a large circular discharge head for Air discharge voltage exceeding 15 kV. The diameter of it is around 20 mm ~ 30 mm.