ISO 11451-4:2013 specifies bulk current injection (BCI) test methods for testing the electromagnetic immunity of electronic components for passenger cars and commercial vehicles regardless of the propulsion system (e.g. spark-ignition engine, diesel engine, electric motor). The electromagnetic disturbance considered in ISO 11451-4:2013 is limited to continuous narrowband electromagnetic fields.
ISO 11451-1 gives definitions, practical use and basic principles of the test methods.