ANSI/ESD SP3.3-2016 pdf free download.ESD Association Standard Practice for the Protection of Electrostatic Discharge Susceptible Items – Periodic Verification of Air Ionizers. 6.3 Offset Voltage The isolated conductive plate shall be momentarily grounded to remove any residual charge and to verify zero of the voltage monitoring device. The isolated conductive plate is placed within the ionized environment and monitored until...