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About This Item


Full Description


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;
NOTE Application of the general coding principles for displays on screens should be carried out without modification.
- 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 coding is to be assigned by a technical committee to a special function.

Document History

  1. CAN/CSA Z431-12 (R2016)


    Basic and safety principles for man-machine interface, marking and identification - Coding principles for indicators and actuators (Adopted IEC 60073:2002, sixth edition, 2002-05)

    • Most Recent
  2. CAN/CSA Z431-02 (R2007)

    Basic and Safety Principles for Man-Machine Interface, Marking and Identification - Coding Principles for Indication Devices and Actuators (Adopted CEI/IEC 73:1996, fifth edition, 1996-10)

    • Historical Version
  3. CAN/CSA Z431-M89 (R1996)

    Colours of Indicator Lights and Push-Buttons (Adopted IEC 73:1984) / Couleurs des voyants lumineux de signalisation et des boutons-poussoirs (norme CEI 73:1984 adoptee)

    • Historical Version