This standard BS EN 62502:2011 Analysis techniques for dependability. Event tree analysis (ETA) is classified in these ICS categories:
21.020 Characteristics and design of machines, apparatus, equipment
29.020 Electrical engineering in general
IEC 62502:2010 specifies the consolidated basic principles of Event Tree Analysis (ETA) and provides guidance on modelling the consequences of an initiating event as well as analysing these consequences qualitatively and quantitatively in the context of dependability and risk related measures.