IEC 60417 graphical symbols are primarily indended to: - identify the equipment or a part of the equipment (e.g. a control or display); - indicate a functional state (e.g. on, off, alarm); - designate connections (e.g. terminals, filling points for materials); - provide information on packaging (e.g. identification of contents, instructions for handling); - provide instruction for the operation of the equipment (e.g. limitations of use). IEC 60417 does not apply to symbol originals for: - safety signs; - use on drawings and diagrams; - use in technical documentation of products and in technical product documentation; - use for public information. ISO 7000 provides a synopsis of those graphical symbols which are placed on equipment or parts of equipment of any kind in order to instruct the person(s) using the equipment as to its operation.