The scope of this European Standard is: - establish a working definition for switches and their constituent parts and identify the main types; - specify the minimum requirements for the manufacture of the switches and/or constituent parts; - specify codes of practice for inspection and tolerances of both full and half sets of switches and their constituent parts; - establish the limits and scope of supply; - list the methods by which switches and their parts should be identified and traced; - list the different and varying ways by which switches can be described using the following parameters: - geometry of the switches; - types of construction; - performance requirements; - design criteria; - tolerances and inspection.