scope:

Contains graphical symbols and their meaning (title and application). The graphical symbols in the standard are primarily intended - to identify the equipment or a part of the equipment (.e.g. control or display); - to indicate functional states (e.g. on, off, alarm); - to designate connections (e.g. terminals, filling points for materials); - to provide information on packaging (e.g. identification of content, instructions for handling); - to provide instruction for the operation of the equipment (.e.g. limitations of use).