This National Standard of Canada is equivalent to International Standard CEI/IEC 73:1996. 1 Scope This International Standard establishes general rules for assigning particular
meanings to certain visual, acoustic and tactile indications in order to
- increase the safety of persons, property and/or the environment through the
safe monitoring and control of the equipment or process;
- facilitate the proper monitoring, control and maintenance of the equipment
or process;
- facilitate the rapid recognition of control conditions and actuator
positions. This standard is for general application:
- from simple cases such as single indicator lights, push-buttons, mechanical
indicators, light emitting diodes (LEDs) or video display screens to extensive
control stations which may include a wide variety of devices for controlling an
equipment or process;
- where the safety of persons, property and/or the environment is involved,
and also where the above-mentioned codes are used to facilitate the proper
monitoring and controlling of equipment;
- where a particular kind of cooling is to be assigned by a technical
committee to a special function.